求助 下面程序的实际意义
public class MainTest {public static void main(String agrs[]){
char arrayList[] ="123456789".toCharArray();
String temp = "";
outputP(temp,arrayList,0,8);
}
public static void outputP(String temp,char arrayList[],int i, int j){
String str="";
if (temp.length() == 9){
System.out .println(temp);
temp="";
}
else{
for (int ii = i; ii < j ;ii++){
str= Character .toString(arrayList[ii]);
outputP( temp.concat(str) , arrayList,ii,j);
}
}
}
}
补充:Java , Java相关