Editing Instance variable (section)

=== Java ===
<syntaxhighlight lang="java">
//Example.java

class Example {
    public int x = 0;
    
    public void setX(int newValue) {
        this.x = newValue;
    }
}

//Main.java

class Main {
    public static void main(String[] args) {
        Example example1 = new Example();
        Example example2 = new Example();
        
        //We can set the value of x by itself, as the variable is public
        example1.x = 10;
        
        assert example1.x == 10;
        assert example2.x ==  0;
        
        //As setX is an instance method, it can also access the variable
        example2.setX(-10);
        
        assert example1.x ==  10;
        assert example2.x == -10;
    }
}
</syntaxhighlight>

In this [[Java (programming language)|Java]] example, we can see how instance variables can be modified in one instance without affecting another.