相同的哈希值SameHashCode

package com.t;

import java.text.MessageFormat;
import java.text.SimpleDateFormat;
import java.util.Date;

public class SameHashCode {
    public static void main(String[] args) {
        String a="Aa";
        String b="BB";
        System.out.println(a.hashCode());
        System.out.println(b.hashCode());
    }
}

结果

2112

2112