Java is Pass by Value and Not Pass by Reference

• Pass by Value: The method parameter values are copied to another variable and then the copied object is passed, that’s why it’s called pass by value.
• Pass by Reference: An alias or reference to the actual parameter is passed to the method, that’s why it’s called pass by reference.

public class Main { 

public static void main(String[] args) { 

int x = 5; 

change(x); 

System.out.println(x); 

} 

public static void change(int x)   { 

x = 10; 

} 

} 

Output:

5

Reference