Difference Between Equals and = = in Java

By Mohit Uniyal|Updated : July 6th, 2022

Difference Between Equals and = = in Java: Both equals and = = in java are used to compare two objects. Where = = is an operator and equals is a method. In java = = operator is used for comparing the reference or memory location of objects in a data heap, whether they are at the same location or not. Whereas, the String equals() method in java compare the two given strings based on the string's data.

Here, we will first briefly explain equals and = = in Java and then we are going to discuss the complete exploration of the difference between equals and = = in Java. We are going to look into some more differences in various parameters below.

Table of Content

What is the Difference Between Equals and = = in Java?

The difference between Equals and = = in Java is explained in the table provided below:

Difference Between Equals and = = in Java

Equals in Java

= = in Java

In Java Equals() are considered a method

In Java == is considered an operator.

It is used for content comparison.

It is majorly used for address comparison.

It is not possible to use the equals method with primitives.

It is possible to use the == operator with objects and primitives.

This method can be used for comparing the conflicting objects that utilise the equals() method and returns “false”.

The == operator can not be used for comparing the conflicting objects, so at that moment the compiler shows the compile-time error.

In javascript, the equals() method can be overridden.

In javascript, the equality operators(==) operator cannot be overridden.

What are Equals in Java?

In Java, if we want to compare the two given strings whether they are equals or not then we use the string equals() method based on the provided data/content of the string. If in java all the contents of both the strings are the same as each other, it returns true else it returns false if all characters are not matched. 

What is = = in Java?

In java, equality operators are denoted by the “= =” sign. These equality operators (= =) compare the reference or memory location of given data in a heap, whether these point to the same location or not.

Whenever we develop an object using the new operator, it will directly create a new memory location for that created object. So the “= =” operator is used to check memory location or address of two given objects are the same or not. These equality operators can be applied for every primitive type, including the boolean type. The equality operators “= =” can also be applied for object types. 

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FAQs on Difference Between Equals and = = in Java

  • The major difference between Equals and = = in Java is that the .equals() is a method whereas equality operators(==) is an operator. The Equal() method is used to compare the actual content of the object and equality operators(==) are used to compare the memory or reference location of an object in the heap.

  • In Java, the equals() method is used for comparing the two given springs whether they are equal to each other or not based on the given data/content of the string. If in a case all the given contents of both the strings are the same with each other, the results show true else it shows false.

  • In java, the equality operators “= =” are used to compare the reference or memory location of given data whether this data is at the same location or not. Whenever we develop an object using the new operator, it will directly generate a new memory location for that new object. These = = operators can be applied for every primitive type, including the boolean type.

  • The need for the overriding equals () method in Java is for checking the objects that are based on the property. For example, If you want to check the equality of employee objects by their id, we use the override the equals() method. This method is quite easy and useful in Java.

  • In JavaScript, the = = is used for comparing two given variables, but generally, this operator ignores the datatype of the variable whereas the = = = is used for comparing the given two variables, but this operator also checks the data type and compares two values with each other.

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