{"id":66762,"date":"2025-05-03T16:52:05","date_gmt":"2025-05-03T08:52:05","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66762\/"},"modified":"2025-05-03T16:52:05","modified_gmt":"2025-05-03T08:52:05","slug":"java%e4%b8%ad%e6%80%8e%e4%b9%88%e5%88%a0%e9%99%a4%e6%95%b0%e7%bb%84%e4%b8%ad%e7%9a%84%e6%95%b0-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66762\/","title":{"rendered":"java\u4e2d\u600e\u4e48\u5220\u9664\u6570\u7ec4\u4e2d\u7684\u6570"},"content":{"rendered":"

\n java \u6570\u7ec4\u4e0d\u53ef\u76f4\u63a5\u5220\u9664\u5143\u7d20\u3002\u53ef\u4f7f\u7528 arraylist\u3001system.arraycopy \u6216 java 8 \u7684 arrays.copyofrange \u7b49\u65b9\u6cd5\u6765\u5220\u9664\u5143\u7d20\uff0c\u5177\u4f53\u6b65\u9aa4\u5982\u4e0b\uff1a\u4f7f\u7528 arraylist\uff1a\u521b\u5efa arraylist\uff0c\u6dfb\u52a0\u5143\u7d20\uff0c\u4f7f\u7528 remove \u65b9\u6cd5\u5220\u9664\u6307\u5b9a\u7d22\u5f15\u6216\u7279\u5b9a\u503c\u3002\u4f7f\u7528 system.arraycopy\uff1a\u521b\u5efa\u6570\u7ec4\uff0c\u4f7f\u7528 system.arraycopy \u65b9\u6cd5\u5220\u9664\u6307\u5b9a\u7d22\u5f15\u7684\u5143\u7d20\u3002\u4f7f\u7528 java 8 \u7684 arrays.copyofrange\uff1a\u521b\u5efa\u6570\u7ec4\uff0c\u4f7f\u7528 arrays.\n<\/p><\/blockquote>\n

\"java\u4e2d\u600e\u4e48\u5220\u9664\u6570\u7ec4\u4e2d\u7684\u6570\u63d2\u56fe\"<\/p>\n

\u5982\u4f55\u4ece Java \u6570\u7ec4\u4e2d\u5220\u9664\u5143\u7d20<\/strong><\/p>\n

\u76f4\u63a5\u5220\u9664<\/strong><\/p>\n

\u5bf9\u4e8e\u57fa\u672c\u6570\u636e\u7c7b\u578b\u7684\u6570\u7ec4\uff0cJava \u4e0d\u652f\u6301\u76f4\u63a5\u5220\u9664\u5143\u7d20\u3002<\/p>\n

\u4f7f\u7528 ArrayList<\/strong><\/p>\n

\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n

\u4f7f\u7528 ArrayList\uff08\u52a8\u6001\u6570\u7ec4\uff09\u4ee3\u66ff\u6570\u7ec4\uff0c\u5b83\u63d0\u4f9b\u76f4\u63a5\u5220\u9664\u5143\u7d20\u7684\u65b9\u6cd5\uff1a<\/p>\n

\/\/ \u521b\u5efa\u4e00\u4e2a ArrayList\nArrayList<Integer> list = new ArrayList<>();\n\n\/\/ \u6dfb\u52a0\u5143\u7d20\nlist.add(1);\nlist.add(2);\nlist.add(3);\n\n\/\/ \u5220\u9664\u6307\u5b9a\u7d22\u5f15\u7684\u5143\u7d20\nlist.remove(1);\n\n\/\/ \u5220\u9664\u7279\u5b9a\u503c\nlist.remove(new Integer(2));<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4f7f\u7528 System.arraycopy<\/strong><\/p>\n
\u5bf9\u4e8e\u57fa\u672c\u6570\u636e\u7c7b\u578b\u7684\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528 System.arraycopy \u6765\u5220\u9664\u5143\u7d20\uff1a<\/p>\n
\/\/ \u521b\u5efa\u4e00\u4e2a\u6570\u7ec4\nint[] array = {1, 2, 3, 4, 5};\n\n\/\/ \u5220\u9664\u7d22\u5f15\u4e3a 2 \u7684\u5143\u7d20\nSystem.arraycopy(array, 3, array, 2, array.length - 3);<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4f7f\u7528 Java 8 \u7684 Arrays.copyOfRange<\/strong><\/p>\n
Java 8 \u53ca\u66f4\u9ad8\u7248\u672c\u63d0\u4f9b\u4e86 Arrays.copyOfRange \u65b9\u6cd5\u6765\u5220\u9664\u5143\u7d20\uff1a<\/p>\n
\/\/ \u521b\u5efa\u4e00\u4e2a\u6570\u7ec4\nint[] array = {1, 2, 3, 4, 5};\n\n\/\/ \u5220\u9664\u7d22\u5f15\u4e3a 2 \u7684\u5143\u7d20\nint[] newArray = Arrays.copyOfRange(array, 0, 2);<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4ee5\u4e0a\u5c31\u662fjava\u4e2d\u600e\u4e48\u5220\u9664\u6570\u7ec4\u4e2d\u7684\u6570\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
java \u6570\u7ec4\u4e0d\u53ef\u76f4\u63a5\u5220\u9664\u5143\u7d20\u3002\u53ef\u4f7f\u7528 arraylist\u3001system.arraycopy \u6216 java 8 \u7684 arrays.copyofrange \u7b49\u65b9\u6cd5\u6765\u5220\u9664\u5143\u7d20\uff0c\u5177\u4f53\u6b65\u9aa4\u5982\u4e0b\uff1a\u4f7f\u7528 arraylist\uff1a\u521b\u5efa arraylist\uff0c\u6dfb\u52a0\u5143\u7d20\uff0c\u4f7f\u7528 remove \u65b9\u6cd5\u5220\u9664\u6307\u5b9a\u7d22\u5f15\u6216\u7279\u5b9a\u503c\u3002\u4f7f\u7528 system.arraycopy\uff1a\u521b\u5efa\u6570\u7ec4\uff0c\u4f7f\u7528 system.arraycopy \u65b9\u6cd5\u5220\u9664\u6307\u5b9a\u7d22\u5f15\u7684\u5143\u7d20\u3002\u4f7f\u7528 java 8 \u7684 arrays.copyofrange\uff1a\u521b\u5efa\u6570\u7ec4\uff0c\u4f7f\u7528 arrays. \u5982\u4f55\u4ece Java \u6570\u7ec4\u4e2d\u5220\u9664\u5143\u7d20 \u76f4\u63a5\u5220\u9664 \u5bf9\u4e8e\u57fa\u672c\u6570\u636e\u7c7b\u578b\u7684\u6570\u7ec4\uff0cJava \u4e0d\u652f\u6301\u76f4\u63a5\u5220\u9664\u5143\u7d20\u3002 \u4f7f\u7528 ArrayList \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u4f7f\u7528 ArrayList\uff08\u52a8\u6001\u6570\u7ec4\uff09\u4ee3\u66ff\u6570\u7ec4\uff0c\u5b83\u63d0\u4f9b\u76f4\u63a5\u5220\u9664\u5143\u7d20\u7684\u65b9\u6cd5\uff1a \/\/ \u521b\u5efa\u4e00\u4e2a ArrayList ArrayList<Integer> list = new ArrayList<>(); \/\/ \u6dfb\u52a0\u5143\u7d20 list.add(1); list.add(2); list.add(3); \/\/ \u5220\u9664\u6307\u5b9a\u7d22\u5f15\u7684\u5143\u7d20 list.remove(1); \/\/ \u5220\u9664\u7279\u5b9a\u503c list.remove(new Integer(2)); \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528 System.arraycopy […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-66762","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66762","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=66762"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66762\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66762"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66762"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66762"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}