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Java Program to add long integers and check for overflow
To check for Long overflow, we need to check the Long.MAX_VALUE with the added long result. Here, Long.MAX_VALUE is the maximum value of Long type in Java.
Let us see an example wherein long integers are added and if the result is more than the Long.MAX_VALUE, then an exception is thrown.
The following is an example showing how to check for Long overflow.
Example
public class Demo {
public static void main(String[] args) {
long val1 = 80989;
long val2 = 87567;
System.out.println("Value1: "+val1);
System.out.println("Value2: "+val2);
long sum = val1 + val2;
if (sum > Long.MAX_VALUE) {
throw new ArithmeticException("Overflow!");
}
// displaying addition
System.out.println("Addition Result: "+sum);
}
}Output
Value1: 80989 Value2: 87567 Addition Result: 168556
In the above example, we have taken the following two integers.
long val1 = 80989; long val2 = 87567;
Now we will perform addition.
long sum = val1 + val2;
If the result is more than the maximum value, then an exception is thrown.
If (sum> Long.MAX_VALUE) {
throw new ArithmeticException("Overflow!");
}
Updated on: 26-Jun-2020
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