java去掉字符串数组中重复的值.docx

java去掉字符串数组中重复的值 方法一 import java.util.Set;import java.util.TreeSet; public class RemoveRepeatStr {?/**? * 去掉字符串数组中重复的值 1? * @param args? */?public static void main(String[] args) {??String str = java java oracle oracle .net c# j# php mysql mssql android mobile html mobile android;??String strs[] = str.split( );????//这里利用Set是因为 Set是一个不包含重复元素的 collection，自动去掉重复的值??SetString set = new TreeSetString();??int len = strs.length;??for(int i=0;ilen;i++){???set.add(strs[i]);//将所有字符串添加到Set??}??strs = (String[]) set.toArray(new String[0]); // new String[0]表示里面的元素转为字符串数组类型 ??for(int i=0;istrs.length;i++){???System.out.println(strs[i]);//输出想要的值??}?}} 方法二 import java.util.Arrays;import java.util.List;import java.util.LinkedList;public class tests {??????? public static List printMap1(String[] s) {??? ??? ListString list =? new LinkedListString();??? ??? ListString list2 = Arrays.asList(s);??? ??? list.addAll(list2);??? ??? return list;??? ??????? }??????? public static String[] array_unique(String[] a) {??? ??? // array_unique??? ??? ListString list = new LinkedListString();??? ??? for(int i = 0; i a.length; i++) {??? ??? ??? if(!list.contains(a[i])) {??? ??? ??? ??? list.add(a[i]);??? ??? ??? }??? ??? }??? ??? return (String[])list.toArray(new String[list.size()]);??? }??????? public static void main(String[] args) {??? ??? String[] ar = {dd,cc,ee,ff,gg,cc,ee};??? ??? String[] s = array_unique(ar);??? ??? for(String aa : s) {??? ??? ??? System.out.println(aa);??? ??? }??? ??? List list3 = printMap1(ar);??? ??? for(Object o : list3) {??? ??? ??? System.out.println(o);??? ??? }??? }????}