1.网上面试题
这是一道Java面试题。看了非常多答案都说不正确。能够看下面代码。就知道结果了
http://www.iteye.com/topic/485046第45题 答案是错误的
package com.test;
public class Main {
public static void main(String[] args) {
// TODO Auto-generated method stub
Test x=new Test("x");
Test y=new Test("y");
System.out.println("x HashCode="+x.hashCode());
System.out.println("y HashCode="+y.hashCode());
System.out.println(x.equals(y)==true);
}
}
class Test{
private String name;
public Test(String name){
this.name=name;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((name == null) ? 0 : name.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
return true;
}
}
2.结果
x HashCode=151 y HashCode=152 true
所以这个面试题是能够的