public static long multiplyFull(int x, int y)

// Java program to demonstrate
// multiplyFull() method of StrictMath class
  
public class GFG {
  
    // Main method
    public static void main(String[] args)
    {
  
        // two Integer values
        int a = 367428, b = 1374;
  
        // apply multiplyFull method
        long c = StrictMath.multiplyFull(a, b);
  
        // print result
        System.out.println(a + " * "
                           + b + " = " + c);
    }
}

367428 * 1374 = 504846072

// Java program to demonstrate
// multiplyFull() method of StrictMath class
  
public class GFG {
  
    // Main method
    public static void main(String[] args)
    {
  
        // two Integer values
        int a = Integer.MAX_VALUE;
        int b = Integer.MAX_VALUE;
  
        // apply multiplyFull method
        long c = StrictMath.multiplyFull(a, b);
  
        // print result
        System.out.println(a + " * "
                           + b + " = " + c);
    }
}

2147483647 * 2147483647 = 4611686014132420609