{"id":1664,"date":"2020-08-04T14:41:43","date_gmt":"2020-08-04T06:41:43","guid":{"rendered":"http:\/\/admin.evshou.com\/?p=1664"},"modified":"2020-08-07T16:02:55","modified_gmt":"2020-08-07T08:02:55","slug":"2020java%e6%95%99%e7%a8%8b%ef%bc%9a%e6%95%b0%e7%bb%84%e7%9a%84%e6%89%a9%e5%ae%b9","status":"publish","type":"post","link":"https:\/\/www.9713job.com\/?p=1664","title":{"rendered":"2020java\u6559\u7a0b\uff1a\u6570\u7ec4\u7684\u6269\u5bb9"},"content":{"rendered":"

\u6570\u7ec4\u7684\u6269\u5bb9<\/p>\n

\u521b\u5efa\u6570\u7ec4\u65f6\uff0c\u5fc5\u987b\u663e\u793a\u6307\u5b9a\u957f\u5ea6\uff0c\u5e76\u5728\u521b\u5efa\u4e4b\u540e\u4e0d\u53ef\u66f4\u6539\u957f\u5ea6
\n\u6269\u5bb9\u7684\u601d\u8def
\n\u521b\u5efa\u5927\u4e8e\u539f\u6570\u7ec4\u957f\u5ea6\u7684\u65b0\u6570\u7ec4
\n\u5c06\u539f\u6570\u7ec4\u7684\u5143\u7d20\u4f9d\u6b21 \u590d\u5236 \u5230\u65b0\u6570\u7ec4\u4e2d<\/p>\n\n\n\n\n\n\n
\u6570\u7ec4\u6269\u5bb9<\/th>\n<\/th>\n<\/th>\n<\/th>\n<\/th>\n<\/th>\n<\/th>\n<\/th>\n<\/th>\n<\/th>\n<\/th>\n<\/tr>\n<\/thead>\n
old<\/td>\n11<\/td>\n22<\/td>\n33<\/td>\n44<\/td>\n55<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
new<\/td>\n11<\/td>\n22<\/td>\n33<\/td>\n44<\/td>\n55<\/td>\n0<\/td>\n0<\/td>\n0<\/td>\n0<\/td>\n0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/p>\n

\u590d\u5236\u7684\u65b9\u5f0f
\n\u5faa\u73af\u5c06\u539f\u6570\u7ec4\u4e2d\u6240\u6709\u5143\u7d20\u9010\u4e00\u8d4b\u503c\u7ed9\u65b0\u6570\u7ec4
\nSystem.arraycopy(\u539f\u6570\u7ec4,\u539f\u6570\u7ec4\u8d77\u59cb,\u65b0\u6570\u7ec4,\u65b0\u6570\u7ec4\u8d77\u59cb,\u957f\u5ea6)
\njava.util.Arrays.copyOf(\u539f\u6570\u7ec4,\u65e7\u6570\u7ec4\u957f\u5ea6*2);\/\/\u8fd4\u56de\u5e26\u6709\u539f\u503c\u7684\u65b0\u6570\u7ec4\uff0c\u63a8\u8350<\/p>\n

\u5730\u5740\u7684\u66ff\u6362
\n\u6570\u7ec4\u4f5c\u4e3a\u5f15\u7528\u7c7b\u578b\u4e4b\u4e00\uff0c\u5176\u53d8\u91cf\u4e2d\u5b58\u50a8\u7684\u662f\u6570\u7ec4\u7684\u5730\u5740
\n\u5b8c\u6210\u5143\u7d20\u590d\u5236\u540e\uff0c\u9700\u5c06\u65b0\u6570\u7ec4\u5730\u5740\uff0c\u8d4b\u503c\u7ed9\u539f\u53d8\u91cf\u8fdb\u884c\u66ff\u6362<\/p>\n

\u6570\u7ec4\u7c7b\u578b\u7684\u53c2\u6570
\npublic class demo{
\npublic static void main(String[] args){
\nint[] arr={9,7,3,1,6,4,5,8,2};
\nprintArr(arr);\/\/\u4f20\u5165\u7684\u5b9e\u53c2\u5fc5\u987b\u4e0e\u5f62\u53c2\u7c7b\u578b\u4e00\u81f4
\n}
\npublic static void printArr(int[] arr){\/\/\u5f62\u53c2
\nfor(int i=0;i<arr.length;i++){
\nSystem.out.print(arr[i]+”\\t”);
\n}
\n}
\n}
\n\u65b9\u6cd5\u8c03\u7528\uff0c\u5c06arr\u4e2d\u7684\u5730\u5740\u8d4b\u503c\u7ed9printArr\u51fd\u6570\u4e2d\u7684arr\uff0c\u6b64\u65f6\u4e8c\u8005\u6307\u5411\u540c\u4e00\u4e2a\u6570\u7ec4<\/p>\n

\u6570\u7ec4\u7c7b\u578b\u7684\u8fd4\u56de\u503c\u4ee5\u53ca\u6253\u5370\u6570\u7ec4\u5143\u7d20
\npublic class demo{
\npublic static void main(String[] args){
\nint[] arr={1,2,3,4,5,6};
\nint[] arrs=arrscopy(arr);
\nprintArr(arrs);
\n}
\npublic static int[] arrscopy(int[] arr){
\nint[] arrs=new int[arr.length*2];
\n\/\/\u521b\u5efa\u65b0\u6570\u7ec4\uff0c\u957f\u5ea6\u4e3a\u539f\u6570\u7ec4\u76842\u500d<\/p>\n

for(int i=0;i<arr.length;i++){
\narrs[i]=arr[i];\/\/\u5c06\u65e7\u6570\u7ec4\u8d4b\u503c\u5230\u65b0\u6570\u7ec4\u4e2d
\n}<\/p>\n

return arrs;\/\/\u65b0\u6570\u7ec4\u4e2d\u4fdd\u7559\u65e7\u6570\u7ec4\u7684\u5143\u7d20\uff0c\u8fd4\u56de\u65b0\u6570\u7ec4
\n}<\/p>\n

public static void printArr(int[] arr){
\n\/\/\u6570\u7ec4\u5faa\u73af\u904d\u5386
\nfor(int i=0;i<arr.length;i++){
\nSystem.out.print(arr[i]+”\\t”);
\n\/\/\u4f9d\u6b21\u6253\u5370\u6570\u7ec4\u4e2d\u6240\u6709\u7684\u5143\u7d20
\n}
\n}
\n}<\/p>\n

\u6570\u7ec4\u7684\u5192\u6ce1\u6392\u5e8f
\npublic class demo{
\npublic static void main(String[] args){
\n\/\/\u6570\u7ec4\u7684\u5192\u6ce1\u6392\u5e8f
\n\/\/\u76f8\u90bb\u7684\u4e24\u4e2a\u6570\u503c\u6bd4\u8f83\u5927\u5c0f\uff0c\u4e92\u6362\u4f4d\u7f6e
\nint[] arr={7,9,8,1,3,5,0,4,6,2};
\nsorts(arr);
\nprintArr(arr);
\n}
\npublic static void sorts(int[] arr){
\nfor(int i=0;i<arr.length;i++){
\nfor(int j=0;j<arr.length-1;j++){
\nif(arr[j]<arr[j+1]){
\nint tem=arr[j];
\narr[j]=arr[j+1];
\narr[j+1]=tem;
\n}
\n}
\n}
\n}
\npublic static void printArr(int[] arr){
\nfor(int i=0;i<arr.length;i++){
\nSystem.out.print(arr[i]+”\\t”);
\n}
\nSystem.out.println();
\n}
\n}<\/p>\n

\u6570\u7ec4\u7684\u9009\u62e9\u6392\u5e8f
\npublic class demo{
\npublic static void main(String[] args){
\n\/\/\u6570\u7ec4\u7684\u9009\u62e9\u6392\u5e8f
\n\/\/\u56fa\u5b9a\u503c\u4e0e\u5176\u4ed6\u503c\u4f9d\u6b21\u6bd4\u8f83\u5927\u5c0f\uff0c\u4e92\u6362\u4f4d\u7f6e
\nint[] arr={7,9,8,1,3,5,0,4,6,2};
\nsorts(arr);
\nprintArr(arr);
\n}
\npublic static void sorts(int[] arr){
\nfor(int i=0;i<arr.length;i++){
\nfor(int j=i+1;j<arr.length;j++){
\nif(arr[i]<arr[j]){
\nint tem=arr[i];
\narr[i]=arr[j];
\narr[j]=tem;
\n}
\n}
\n}
\n}
\npublic static void printArr(int[] arr){
\nfor(int i=0;i<arr.length;i++){
\nSystem.out.print(arr[i]+”\\t”);
\n}
\nSystem.out.println();
\n}
\n}<\/p>\n

jdk\u63d0\u4f9b\u5347\u5e8f
\nimport java.util.*;
\npublic class demo{
\npublic static void main(String[] args){
\n\/\/\u4f7f\u7528 Arrays.sort(\u6570\u7ec4\u540d)<\/p>\n

int[] arr={7,9,8,1,3,5,0,4,6,2};<\/p>\n

Arrays.sort(arr);\/\/jdk\u63d0\u4f9b\u5347\u5e8f<\/p>\n

printArr(arr);
\n}
\npublic static void printArr(int[] arr){
\nfor(int i=0;i<arr.length;i++){
\nSystem.out.print(arr[i]+”\\t”);
\n}
\nSystem.out.println();
\n}
\n}<\/p>\n","protected":false},"excerpt":{"rendered":"

\u6570\u7ec4\u7684\u6269\u5bb9 \u521b\u5efa\u6570\u7ec4\u65f6\uff0c\u5fc5\u987b\u663e\u793a\u6307\u5b9a\u957f\u5ea6\uff0c\u5e76\u5728\u521b\u5efa\u4e4b\u540e\u4e0d\u53ef\u66f4\u6539\u957f\u5ea6 \u6269\u5bb9\u7684\u601d\u8def \u521b\u5efa\u5927\u4e8e\u539f\u6570\u7ec4\u957f\u5ea6\u7684\u65b0\u6570\u7ec4 \u5c06 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-1664","post","type-post","status-publish","format-standard","hentry"],"_links":{"self":[{"href":"https:\/\/www.9713job.com\/index.php?rest_route=\/wp\/v2\/posts\/1664","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.9713job.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.9713job.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.9713job.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.9713job.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1664"}],"version-history":[{"count":2,"href":"https:\/\/www.9713job.com\/index.php?rest_route=\/wp\/v2\/posts\/1664\/revisions"}],"predecessor-version":[{"id":1789,"href":"https:\/\/www.9713job.com\/index.php?rest_route=\/wp\/v2\/posts\/1664\/revisions\/1789"}],"wp:attachment":[{"href":"https:\/\/www.9713job.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1664"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.9713job.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1664"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.9713job.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1664"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}