java È«ÅÅÁÐËã·¨
import java.util.Arrays;
/**
* ÇóÒ»¸öÊý×éµÄÈ«ÅÅÁÐËã·¨
* @author Administrator
*/
public class Pai {
public void pai(char[] array,int start,int end){
System.out.println(" -- ×éºÏ "+start+" µ½ "+end+" --");
if(start==end){
System.out.println(array);
}else{
for(int i=start; i<end; i++){
swap(array,start,i);
pai(array,start+1,end);
swap(array,start,i);
}
}
}
public void swap(char[] array,int i,int k){
//System.out.println(Arrays.toString(array) +" "+ i +" <--> "+k);
System.out.println("½»»» "+ i +" µ½ "+k);
char temp = array[i];
array[i] = array[k];
array[k] = temp;
}
public static void main(String[] args) {
String str = "1234";
Pai t = new Pai();
char[] array = str.toCharArray();
t.pai(array,0,array.length);
}
}
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package chape8;
import java.math.BigDecimal;
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