Java Math subtractExact(long x, long y) method
Last Updated :
27 Apr, 2018
The java.lang.Math.subtractExact() is a built-in math function in java which returns the difference of the
arguments.It throws an exception if the result overflows a long.As subtractExact(long x, long y) is static,
so object creation is not required.
Syntax :
public static long subtractExact(long x, long y)
Parameter :
x : the first value
y : the second value to be subtracted from the first
Return :
This method returns the difference of the arguments.
Exception :
It throws ArithmeticException - if the result overflows a long.
Example :To show working of java.lang.Math.subtractExact() method.
import java.lang.Math;
class Gfg1 {
public static void main(String args[])
{
long x = 11111111111l;
long y = 999l;
System.out.println(Math.subtractExact(x, y));
}
}
|
Output:
11111110112
import java.lang.Math;
class Gfg2 {
public static void main(String args[])
{
long a = Long.MIN_VALUE;
long b = 1 ;
System.out.println(Math.subtractExact(a, b));
}
}
|
Output:
Runtime Error :
Exception in thread "main" java.lang.ArithmeticException: long overflow
at java.lang.Math.subtractExact(Math.java:849)
at Gfg2.main(File.java:13)
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