关于Java Integer和Long使用equals直接比较

Integer和Long不能直接equals比较会返回False

Long.class源码

public boolean equals(Object obj) {if (obj instanceof Long) {return this.value == (Long)obj;} else {return false;}
}

Integer.class源码

public boolean equals(Object obj) {if (obj instanceof Integer) {return this.value == (Integer)obj;} else {return false;}
}

解决方法

• Long变量.equals(Integer变量.longValue())
• Integer变量.equals(Long变量.intValue())