java猜数字代码

import java.util.Random;
import java.util.Scanner;

public class Chouj
{
public static void main(String []args)
{
Random a=new Random();
int b=a.nextInt();

Scanner c=new Scanner(System.in);
System.out.println("请输入");
int d=c.nextInt();

if(d>b || d<b)
{
System.out.println("错误    正确的是" + b);

}
else
{
System.out.println("Bingo");
}
}
}