Java out of range 问题
import java.util.*;
import java.io.*;
public class test {
public static void main(String args[]) {
String M="Calif";
Random rng=new Random();
String K = "";
StringBuffer my = new StringBuffer(M);
StringBuffer my2 = new StringBuffer(K);
System.out.println("length of this String is "+my.length());
int Length=my.length();
for(int r=0;r<Length;r++){
int Length2=my.length();
int b=rng.nextInt(Length2);
my2.append(my.charAt(b-1));
my2.deleteCharAt(b-1);
}
}
}