equalsobjectobjjava

2019年8月22日—Whentheequals()methodreturnstrue,itmeansthattheobjectsareequalinallvaluesandattributes.Inthiscase,thehashcodecomparison ...,2011年12月1日—Theequalsmethodisusedwhenonewantstoknowiftwoobjectsareequivalentbywhateverdefinitiontheobjectsfindsuitable.Forexample, ...,,参数.obj-要比较的对象。返回值.如果两个对象相等返回true，否则返回false。,equals(Objectobj)indicateswhethersomeotherobject...

參考資訊如下
Comparing Java objects with equals() and hashcode()

2019年8月22日 — When the equals() method returns true , it means that the objects are equal in all values and attributes. In this case, the hashcode comparison ...

java

2011年12月1日 — The equals method is used when one wants to know if two objects are equivalent by whatever definition the objects find suitable. For example, ...

Java Object equals() Method with Examples

Java Object equals() 方法

参数. obj - 要比较的对象。 返回值. 如果两个对象相等返回true，否则返回false。

Java.lang.Object.equals() Method

equals(Object obj) indicates whether some other object is equal to this one. The equals method for class Object implements the most discriminating possible ...

java.lang.Object.equals()方法實例

java.lang.Object.equals(Object obj) 表示某個其他對象是否等於這一個對象。 類的equals方法是對象實現對象上可能差彆最大的相等關係;也就是說，對於任何非空引用值x ...

Object (Java Platform SE 7 )

The equals method for class Object implements the most discriminating possible equivalence relation on objects; that is, for any non-null reference values x and ...

Object (Java Platform SE 8 )

The equals method for class Object implements the most discriminating possible equivalence relation on objects; that is, for any non-null reference values x and ...

What is Objects.equals in Java?

The equals() method is a static method of the Objects class that accepts two objects and checks if the objects are equal. If both the objects point to null ...

物件相等性

如果你定義類別時，沒有重新定義equals()方法，則預設繼承自Object，Object的equals()方法是定義為：. public boolean equals(Object obj) return (this == obj); }.