查找数组中重复数据索引 有这样一个数组String[] arr = {10,20,45,20,10,50,50};然后查找出重复数据的索引号结果 0,1,3,4,5,6 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 int[] arr = {10,20,45,20,10,50,50}; int[] arr = {10,20,45,20,10,50,50}; for(int i=0;i<arr.length;i++) { int tmp =arr[i]; for(int j=i+1;j<arr.length;j++) { if(arr[j]==tmp) { System.out.println(i); System.out.println(j); break; } } } String[] arr = {"10","20","45","20","10","50","50"}; int count = 0; System.out.println("重复数据索引:"); for(int i = 0; i < arr.length; i++){ for(int j = 0; j < arr.length; j++){ if(arr[i] == arr[j]){ count++; } } if(count > 1){ System.out.println(i); count = 0; } } String[] arr = {"10","20","45","20","10","50","50"}; int count = 0; System.out.println("重复数据索引:"); for(int i = 0; i < arr.length; i++){ for(int j = 0; j < arr.length; j++){ if(arr[i] == arr[j]){ count++; } } if(count > 1){ System.out.println(i); count = 0; } } 问题出现了 String[] arr = {"小A","小B","小A","小D","小E","小E"}结果:0,2,4,5这样的数据得不到重复的索引呀 真是无语了……还是没错误的String[] arr = { "小张", "小林", "小黑", "小白", "小唐"};int count = 0; String str = ""; System.out.println("重复数据索引:"); for (int i = 0; i < arr.length; i++) { for (int j = 0; j < arr.length; j++) { if (arr[i].equals(arr[j])) { count++; } } if (count > 1) { System.out.println(i); count = 0; } birt分组后单元格变粗怎么办? JSP页面通过数组来更改<img>的src属性 求oracle开发的项目(主要是数据库的脚本) 数据库中读出数据的时候里面有html源码 java如何通过socket发送16进制数据包 SpringMVC求指教100分!!sessionFactory.getCurrentSession().delete无法删除 struts中给<html:text>赋值的问题 请教Spring+Struts+Hinbernate的两个问题 hibernate配置问题 请问怎么调试EJB 纠结,蛋疼!!! el表达式问题
int[] arr = {10,20,45,20,10,50,50};
for(int i=0;i<arr.length;i++)
{
int tmp =arr[i];
for(int j=i+1;j<arr.length;j++)
{
if(arr[j]==tmp)
{
System.out.println(i);
System.out.println(j);
break;
}
}
}
int count = 0;
System.out.println("重复数据索引:");
for(int i = 0; i < arr.length; i++){
for(int j = 0; j < arr.length; j++){
if(arr[i] == arr[j]){
count++;
}
}
if(count > 1){
System.out.println(i);
count = 0;
}
}
String[] arr = {"小A","小B","小A","小D","小E","小E"}
结果:0,2,4,5
这样的数据得不到重复的索引呀
还是没错误的
String[] arr = { "小张", "小林", "小黑", "小白", "小唐"};int count = 0;
String str = "";
System.out.println("重复数据索引:");
for (int i = 0; i < arr.length; i++) { for (int j = 0; j < arr.length; j++) { if (arr[i].equals(arr[j])) {
count++; }
}
if (count > 1) { System.out.println(i);
count = 0;
}