{"id":184,"date":"2025-09-12T11:43:02","date_gmt":"2025-09-12T09:43:02","guid":{"rendered":"http:\/\/www.ccorreas.es\/wordpress\/?p=184"},"modified":"2025-09-12T11:43:02","modified_gmt":"2025-09-12T09:43:02","slug":"tipos-de-datos-coleccion-en-java","status":"publish","type":"post","link":"https:\/\/www.ccorreas.es\/wordpress\/index.php\/2025\/09\/12\/tipos-de-datos-coleccion-en-java\/","title":{"rendered":"Tipos de datos colecci\u00f3n en Java"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">El tipo Array tiene un tama\u00f1o fijo que no se puede variar.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Se declara de la siguiente forma:<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:clamp(14px, .875rem, 21px);font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:clamp(20px, 1.25rem, 30px);--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly> int[] numbers = new int&#91;3&#93;;\n \n numbers&#91;0&#93; = 1;\n numbers&#91;1&#93; = 10;\n System.out.println(numbers&#91;0&#93;);\n System.out.println(numbers&#91;1&#93;);\n System.out.println(numbers&#91;2&#93;);\n \n for(int number: numbers){\n   System.out.println(number);\n }<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">int<\/span><span style=\"color: #ECEFF4\">[]<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">numbers<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">new<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">int<\/span><span style=\"color: #ECEFF4\">&#91;<\/span><span style=\"color: #B48EAD\">3<\/span><span style=\"color: #ECEFF4\">&#93;<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\"> <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\"> numbers<\/span><span style=\"color: #ECEFF4\">&#91;<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #ECEFF4\">&#93;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\"> numbers<\/span><span style=\"color: #ECEFF4\">&#91;<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #ECEFF4\">&#93;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">10<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">System<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">out<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">println<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #D8DEE9FF\">numbers<\/span><span style=\"color: #ECEFF4\">&#91;<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #ECEFF4\">&#93;)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">System<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">out<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">println<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #D8DEE9FF\">numbers<\/span><span style=\"color: #ECEFF4\">&#91;<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #ECEFF4\">&#93;)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">System<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">out<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">println<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #D8DEE9FF\">numbers<\/span><span style=\"color: #ECEFF4\">&#91;<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #ECEFF4\">&#93;)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\"> <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">for<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #81A1C1\">int<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">number<\/span><span style=\"color: #81A1C1\">:<\/span><span style=\"color: #D8DEE9FF\"> numbers<\/span><span style=\"color: #ECEFF4\">){<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">   <\/span><span style=\"color: #D8DEE9\">System<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">out<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">println<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #D8DEE9FF\">number<\/span><span style=\"color: #ECEFF4\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">El tipo de dato ArrayList es una colecci\u00f3n que si permite duplicados.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Se declara y recorre de la siguiente forma:<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:clamp(14px, .875rem, 21px);font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:clamp(20px, 1.25rem, 30px);--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>  ArrayList&lt;String> names = new ArrayList&lt;>();\n  \n  names.add(\"Cristian\");\n  names.add(\"Brais\");\n  names.add(\"mouredev\");\n  names.add(\"Brais\");\n  \n  System.out.println(names.get(1));\n  \n  for(String name: names){\n    System.out.println(name);\n  }      \n        <\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #8FBCBB\">ArrayList<\/span><span style=\"color: #ECEFF4\">&lt;<\/span><span style=\"color: #8FBCBB\">String<\/span><span style=\"color: #ECEFF4\">&gt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">names<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">new<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">ArrayList<\/span><span style=\"color: #ECEFF4\">&lt;&gt;()<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #D8DEE9\">names<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">add<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">Cristian<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #ECEFF4\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #D8DEE9\">names<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">add<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">Brais<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #ECEFF4\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #D8DEE9\">names<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">add<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">mouredev<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #ECEFF4\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #D8DEE9\">names<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">add<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">Brais<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #ECEFF4\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #D8DEE9\">System<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">out<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">println<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #D8DEE9\">names<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">get<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #ECEFF4\">))<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #81A1C1\">for<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #8FBCBB\">String<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">name<\/span><span style=\"color: #81A1C1\">:<\/span><span style=\"color: #D8DEE9FF\"> names<\/span><span style=\"color: #ECEFF4\">){<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">System<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">out<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">println<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #D8DEE9FF\">name<\/span><span style=\"color: #ECEFF4\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #ECEFF4\">}<\/span><span style=\"color: #D8DEE9FF\">      <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Un HashSet es un tipo de dato colecci\u00f3n el cual no permite duplicados.<br>Se declara y recorre de la siguiente forma:<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:clamp(14px, .875rem, 21px);font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:clamp(20px, 1.25rem, 30px);--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>  HashSet&lt;String> names = new HashSet&lt;>();\n  \n  names.add(\"Brais\");\n  names.add(\"Moure\");\n  names.add(\"MoureDev\");\n  names.add(\"mouredev@gmail.com\");\n  \n  for(String name : names){\n    System.out.println(name);\n  }<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #8FBCBB\">HashSet<\/span><span style=\"color: #ECEFF4\">&lt;<\/span><span style=\"color: #8FBCBB\">String<\/span><span style=\"color: #ECEFF4\">&gt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">names<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">new<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">HashSet<\/span><span style=\"color: #ECEFF4\">&lt;&gt;()<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #D8DEE9\">names<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">add<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">Brais<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #ECEFF4\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #D8DEE9\">names<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">add<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">Moure<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #ECEFF4\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #D8DEE9\">names<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">add<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">MoureDev<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #ECEFF4\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #D8DEE9\">names<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">add<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">mouredev@gmail.com<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #ECEFF4\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #81A1C1\">for<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #8FBCBB\">String<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">name<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">:<\/span><span style=\"color: #D8DEE9FF\"> names<\/span><span style=\"color: #ECEFF4\">){<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">System<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">out<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">println<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #D8DEE9FF\">name<\/span><span style=\"color: #ECEFF4\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #ECEFF4\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Los HashMap son una colecci\u00f3n de datos clave-valor.<br>Se declara y recorre de la siguiente forma:<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:clamp(14px, .875rem, 21px);font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:clamp(20px, 1.25rem, 30px);--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>  HashMap&lt;String, String> names = new HashMap&lt;>();\n\n  names.put(\"Brais\" ,\"brais@gmail.com\");\n  names.put(\"Moure\" ,\"mouredev@gmail.com\");\n  names.put(\"Cristian\", \"correasberenguer@gmail.com\");\n  \n  names.remove(\"Moure\");\n  \n  System.out.println(names.get(\"Cristian\"));\n  \n  for(String name: names.keySet()){\n      String value = names.get(name);\n      System.out.println(\"Clave: \" + name + \" valor: \" + value);\n  }\n  <\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #8FBCBB\">HashMap<\/span><span style=\"color: #ECEFF4\">&lt;<\/span><span style=\"color: #8FBCBB\">String<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">String<\/span><span style=\"color: #ECEFF4\">&gt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">names<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">new<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">HashMap<\/span><span style=\"color: #ECEFF4\">&lt;&gt;()<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #D8DEE9\">names<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">put<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">Brais<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">brais@gmail.com<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #ECEFF4\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #D8DEE9\">names<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">put<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">Moure<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">mouredev@gmail.com<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #ECEFF4\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #D8DEE9\">names<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">put<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">Cristian<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">correasberenguer@gmail.com<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #ECEFF4\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #D8DEE9\">names<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">remove<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">Moure<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #ECEFF4\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #D8DEE9\">System<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">out<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">println<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #D8DEE9\">names<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">get<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">Cristian<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #ECEFF4\">))<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #81A1C1\">for<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #8FBCBB\">String<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">name<\/span><span style=\"color: #81A1C1\">:<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">names<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">keySet<\/span><span style=\"color: #ECEFF4\">()){<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">      <\/span><span style=\"color: #8FBCBB\">String<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">value<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">names<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">get<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #D8DEE9FF\">name<\/span><span style=\"color: #ECEFF4\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">      <\/span><span style=\"color: #D8DEE9\">System<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">out<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">println<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">Clave: <\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> name <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\"> valor: <\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> value<\/span><span style=\"color: #ECEFF4\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #ECEFF4\">}<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><\/span><\/code><\/pre><\/div>\n","protected":false},"excerpt":{"rendered":"<p>El tipo Array tiene un tama\u00f1o fijo que no se puede variar. Se declara de la siguiente forma: El tipo [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":185,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-184","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-java"],"_links":{"self":[{"href":"https:\/\/www.ccorreas.es\/wordpress\/index.php\/wp-json\/wp\/v2\/posts\/184","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ccorreas.es\/wordpress\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ccorreas.es\/wordpress\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ccorreas.es\/wordpress\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ccorreas.es\/wordpress\/index.php\/wp-json\/wp\/v2\/comments?post=184"}],"version-history":[{"count":0,"href":"https:\/\/www.ccorreas.es\/wordpress\/index.php\/wp-json\/wp\/v2\/posts\/184\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ccorreas.es\/wordpress\/index.php\/wp-json\/wp\/v2\/media\/185"}],"wp:attachment":[{"href":"https:\/\/www.ccorreas.es\/wordpress\/index.php\/wp-json\/wp\/v2\/media?parent=184"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ccorreas.es\/wordpress\/index.php\/wp-json\/wp\/v2\/categories?post=184"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ccorreas.es\/wordpress\/index.php\/wp-json\/wp\/v2\/tags?post=184"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}