我想请教:
我要把ABCDEFG重新排序下,要求按任意顺序排列,如:ABCDEFG
ACDEFGB
ADEFGBC
AEFGBCD
AFGBCDE
.....................用递归或者别的排序
我要把ABCDEFG重新排序下,要求按任意顺序排列,如:ABCDEFG
ACDEFGB
ADEFGBC
AEFGBCD
AFGBCDE
.....................用递归或者别的排序
http://blog.csdn.net/justinavril/archive/2008/08/02/2758636.aspxChange something and you can realize your function.
public class AllSort{
public static void main(String[] args) {
char [] buf={'a','b','c'}; perm(buf,0,buf.length-1);
}
public static void perm(char[] buf,int start,int end){
if(start==end){//当只要求对数组中一个字母进行全排列时,只要就按该数组输出即可
for(int i=0;i<=end;i++){
System.out.print(buf[i]);
}
System.out.println();
}
else{//多个字母全排列
for(int i=start;i<=end;i++){
char temp=buf[start];//交换数组第一个元素与后续的元素
buf[start]=buf[i];
buf[i]=temp;
printArray(buf);
perm(buf,start+1,end);//后续元素递归全排列
temp=buf[start];//将交换后的数组还原
buf[start]=buf[i];
buf[i]=temp;
printArray(buf);
}
}
}
public static void printArray (char[] charArray){
//System.out.print("排序为: ");
for (int i=0; i<charArray.length; i++){
System.out.print(charArray[i]);
}
System.out.println(" ");
}
}