Which of the following is used to compare the contents of two objects in Java?

Java MCQ: Which of the following is used to compare the contents of two objects in Java?

a) == operator
b) equals() method
c) compareTo() method
d) hashCode() method

Answer:

b) equals() method

Explanation:

In Java, the equals() method is used to compare the contents of two objects. Unlike the == operator, which compares the reference or memory addresses of objects, the equals() method compares the actual data contained within the objects.

The equals() method is defined in the Object class, which is the superclass of all classes in Java. Many classes, such as String, override the equals() method to provide content-based comparison rather than reference-based.

Using equals() is crucial when you need to compare objects based on their content rather than their reference, ensuring accurate and meaningful comparisons in your Java programs.

Reference links:

https://www.rameshfadatare.com/learn-java-programming/
https://www.javaguides.net/p/java-tutorial-learn-java-programming.html

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