The java.lang.Math.toIntExact() is a built-in math function in java which returns the value of the long argument.It throws an exception if the result overflows an int.As toIntExact(long value) is static, so object creation is not
required.
Syntax :
public static int toIntExact(long value) Parameter : value : the long value Return : This method returns the input argument as an int(integer) . Exception : It throws ArithmeticException - if the result overflows an int
Example :To show working of java.lang.Math.toIntExact() method.
// Java program to demonstrate working// of java.lang.Math.toIntExact() methodimport java.lang.Math;  class Gfg1 {    // driver code    public static void main(String args[])    {        long a = 499;        System.out.println(Math.toIntExact(a));    }} |
Output:
499
// Java program to demonstrate working// of java.lang.Math.toIntExact() methodimport java.lang.Math;  class Gfg2 {      // driver code    public static void main(String args[])    {        long x = Long.MAX_VALUE;          System.out.println(Math.toIntExact(x));    }} |
Output:
Runtime Error :
Exception in thread "main" java.lang.ArithmeticException: integer overflow
at java.lang.Math.toIntExact(Math.java:1011)
at Gfg2.main(File.java:12)
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