Java Byte intValue() method

The intValue()  method of Java Integer class returns an int value for this Integer.  Syntax public int intValue()  Parameters NA  Specified by This method is specified by intValue in class Number  Return Value This method returns the numeric value of this object after conversion to type int. Example 1

public class JavaIntegerIntValueExample1 {
    public static void main(String[] args) {
        Integer a=456;
        //returns primitive int value for Integer a
        int val=a.intValue();
        System.out.println("int value "+a+" : "+val);
    }
}

Output

int value 456 : 456

Example 2

public class JavaIntegerIntValueExample2 {
    public static void main(String[] args) {
        int a=456;
        //Here, a is the primitive type object it cannot be used to call Integer class methods
        int val=a.intValue();
        System.out.println("int value "+a+" : "+val);
    }
}

Output

Error:(7, 18) java: int cannot be dereferenced