The multiplyFull(int x, int y) method of StrictMath class is used to return the exact mathematical product of the two arguments. In the parameters, two integer values are provided and the product of both numbers expressed in long type returned by this method.
Syntax:
public static long multiplyFull(int x, int y)
Parameters: This method accepts two Integer x, y as parameter where x and y are arguments to be multiplied.
Return Value: This method returns long type value which is exact product of X * Y.
Note: This method is added in JDK 9. Hence it won’t run on Online IDE.
Below programs illustrate the multiplyFull() method:
Program 1:
// 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);    }} |
Output:
367428 * 1374 = 504846072
Program 2: Multiplying two integers contains Integer.MAX values.
// 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);    }} |
Output:
2147483647 * 2147483647 = 4611686014132420609
References:
https://docs.oracle.com/javase/10/docs/api/java/lang/StrictMath.html#multiplyFull(int, int)
