* method whenever this method is overridden, so as to maintain the * general contract for the {@code hashCode} method, which states * that equal objects must have equal hash codes. * * @param obj the reference object with which to compare. * @return {@code true} if this object is th...
* method whenever this method is overridden, so as to maintain the * general contract for the {@codehashCode} method, which states * that equal objects must have equal hash codes. * *@paramobj the reference object with which to compare. *@return{@codetrue} if this object is the same a...
第一个是，hashcode原则上不应该是id，因为hashcode生成的值，是有可能重复的，id则应该是唯一标识，不...
Theequals()method compares two strings, and returns true if the strings are equal, and false if not. Tip:Use thecompareTo()method to compare two strings lexicographically. Syntax publicbooleanequals(ObjectanotherObject) Parameter Values ParameterDescription ...
[Android.Runtime.Register("isEqual","(Ljava/lang/Object;)Ljava/util/function/Predicate;","", ApiSince=24)] [Java.Interop.JavaTypeParameters(new System.String[] {"T"})] [System.Obsolete("Use 'Java.Util.Functions.IPredicate.IsEqual'. This class will be removed in a future release.")]...
* false} is returned. Otherwise, equality is determined by using * the {@link Object#equals equals} method of the first * argument. * * @param a an object * @param b an object to be compared with {@code a} for equality * @return {@code true} if the arguments are equal to each...
@Overridepublicbooleanequals(Object o){thrownewAssertionError();// Method is never called} 所以什么时候重写Object.equals方法比较合适呢?即,当一个类有一个逻辑相等的概念,并且这个概念不同于对象的特性,并且父类也没有已经重写了的equals方法来实现需求的情况。依赖于值的类就是一个明显的例子,比如Integer,Da...
[Android.Runtime.Register("isEqual","(Ljava/time/chrono/ChronoLocalDateTime;)Z","", ApiSince=26)]publicboolIsEqual(Java.Time.Chrono.IChronoLocalDateTime? other); Parameters other IChronoLocalDateTime Returns Boolean Implements IsEqual(IChronoLocalDateTime) ...
[18:25:23.094] [http-nio-45678-exec-4] [INFO ] [t.c.e.demo1.EqualityMethodController:71 ] - points.contains(p2) ? true 1. 2. 3. 4. 看到这里,你可能会觉得自己实现 equals 和 hashCode 很麻烦,实现 equals 有很多注意点而且代码量很大。不过,实现这两个方法也有简单的方式,一是后面要讲到的...
IsEqual(Object) Method Reference Feedback Definition Namespace: Java.Util.Functions Assembly: Mono.Android.dll Returns a predicate that tests if two arguments are equal according to Objects#equals(Object, Object). [Android.Runtime.Register("isEqual", "(Ljava/lang/Object;)Ljava/util/function...