Relational Operators in Java are used to comparing two variables for equality, non-equality, greater than, less than, etc. Java relational operator always returns a boolean value - true or false.
Java has 6 relational operators.
package com.journaldev.java;
public class RelationalOperators {
public static void main(String[] args) {
int a = 10;
int b = 20;
System.out.println(a == b);
System.out.println(a != b);
System.out.println(a > b);
System.out.println(a < b);
System.out.println(a >= b);
System.out.println(a <= b);
// objects support == and != operators
System.out.println(new Data1() == new Data1());
System.out.println(new Data1() != new Data1());
}
}
class Data1 {
}
Output:
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Hello Thanks for sharing the post. I am not able to understand how == works for primitive data type but not for objects. In the above post it was mentioned that it returns true if both the operandi refers to the same object. I understood that it dosen’t work for objects as when we use new keyword new objects are created. So it returns false. But can you please explain how does it work for primitive data types? Thanks
- Mannam
equals is an Override method of base class Object, then equals is better for object comparison and not for primitive types
- Reynier Ramos Portieles
Thank you for describing different operators in java, I’m adam from Sweden. I’m 47 years old and want to program in java. Some times the operator == does not work and I have to use .equals() ex in a nestled for-loop. https://pastebin.com/TXbWufVu
- Carl-Adam Bergund