Java Math addExact(int a, int b) method
Last Updated :
31 Oct, 2019
The java.lang.Math.addExact() is a built-in math function in java which returns the sum of its arguments.
It throws an exception if the result overflows an int.As addExact(int a, int b) is static, so object creation
is not required.
Syntax :
public static int addExact(int a, int b)
Parameter :
a : the first value
b : the second value
Return :
This method returns the sum of its arguments.
Exception :
It throws ArithmeticException - if the result overflows an int
Example :To show working of java.lang.Math.addExact() method.
import java.lang.Math;
class Gfg1 {
public static void main(String args[])
{
int a = 100 ;
int b = 200 ;
System.out.println(Math.addExact(a, b));
}
}
|
Output:
300
import java.lang.Math;
class Gfg2 {
public static void main(String args[])
{
int x = Integer.MAX_VALUE;
int y = 200 ;
System.out.println(Math.addExact(x, y));
}
}
|
Output:
Runtime Error :
Exception in thread "main" java.lang.ArithmeticException: integer overflow
at java.lang.Math.addExact(Math.java:790)
at Gfg2.main(File.java:13)
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