The implementation of equals() and hashCode() should follow these rules.
Read moreWhat is equals () used for?
The equals() method compares two strings , and returns true if the strings are equal, and false if not.
Read moreWhat is the difference between == and the equals () method?
In simple words, == checks if both objects point to the same memory location whereas . equals() evaluates to the comparison of values in the objects . If a class does not override the equals method, then by default, it uses the equals(Object o) method of the closest parent class that has overridden this method.
Read moreDoes every Object have a toString method and an equal method?
This is how every class has a toString() method : since Object has a toString() method, then ‘children’ of Object inherit a toString() method, the children of children of Object inherit a toString() method, and so on. So every class ‘automatically’ gets a toString() method by inheritance.
Read moreWhat are the three methods of object class in Java?
protected native Object clone() throws CloneNotSupportedException . public boolean equals(Object obj) protected void finalize() throws Throwable .
Read moreHow many methods are there in object class in Java?
There are 11 methods in Object class . Checks whether the obj object is equal to the object on which the equals method is called .
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