Long.MAX_VALUE in Java

Different data types have different ranges in programming. The long data types are usually used when we require a more extensive range, which ultimately results in a larger size in memory. We may encounter the need to assign variables with the maximum value that it can hold.

But it is a difficult job to remember such big numbers with the exact value. So in Java, we have constants for representing these huge numbers. We will be discussing the Long.MAX_VALUE value in this tutorial.

The long integer data type is a 64 bit signed two’s complement integer. The maximum value of long is 9,223,372,036,854,775,807. The Long.MAX_VALUE is a constant from the java.lang package used to store the maximum possible value for any long variable in Java.

In the code below, we will print this Long.MAX_VALUE constant.

public class Long_Max_value{
    public static void main(String[] arg)
    {
        System.out.println("Long.MAX_VALUE = "
                           + Long.MAX_VALUE);
    }
}

Output:

Long.MAX_VALUE = 9223372036854775807

Adding a 1 to this constant will print a negative number as no variable could store any value beyond this maximum limit. Doing so will overflow the memory.

See the following example.

public class Long_Max_value {
    public static void main(String[] arg)
    {
  
        try {
  
            System.out.println("Long.MAX_VALUE + 1");
            Long N = Long.MAX_VALUE + 1;
            System.out.println(N);
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}

Output:

Long.MAX_VALUE + 1
-9223372036854775808