package com.mingrisoft; import java.util.Arrays; public class Number { /** * @param args */ //123456的组合有哪些(5个数组合不能重复)
public static void main(String[] args) {
System.out.println("123456的组合有哪些__(5个数组合不能重复)");
String str = "123456"; char[] arr1 = str.toCharArray(); char[] arr2 = Arrays.copyOf(arr1,arr1.length); char[] arr3 = Arrays.copyOf(arr2,arr2.length); char[] arr4 = Arrays.copyOf(arr3,arr3.length); char[] arr5 = Arrays.copyOf(arr4,arr4.length); for(int i=0;i<arr1.length-1;i++) {
for(int j= i+1;j<arr2.length;j++){
//123456的组合有哪些(2个数组合不能重复)
//System.out.println(arr1[i]+","+arr2[j]);
for(int s=j+1;s<arr3.length;s++){
//123456的组合有哪些(3个数组合不能重复)
//System.out.println(arr1[i]+","+arr2[j]+","+arr3[s]);
for(int c=s+1;c<arr4.length;c++){
//123456的组合有哪些(4个数组合不能重复)
//System.out.println(arr1[i]+","+arr2[j]+","+arr3[s]+","+arr4[c]);
for(int d=c+1;d<arr5.length;d++){
//123456的组合有哪些(5个数组合不能重复)
System.out.println(arr1[i]+","+arr2[j]+","+arr3[s]+","+arr4[c]+","+arr5[d]); } } } } } }
}
输出结果:
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