Most of the times, in
competitive programming, there is a need to assign the variable, the maximum or minimum value that data type can hold, but remembering such a large and precise number comes out to be a difficult job. Therefore, Java has constants to represent these numbers, so that these can be directly assigned to the variable without actually typing the whole number.
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Integer.MAX_VALUE is a constant in the Integer class of java.lang package that specifies that stores the maximum possible value for any integer variable in Java. The actual value of this is
2^31-1 = 2147483647
Example 1:
Output:
Integer.MAX_VALUE = 2147483647
Any integer variable cannot store any value beyond this limit. Upon doing so, the memory will overflow and the value will get negative.
Example 2: Trying to initialize a variable value Integer.MAX_VALUE + 1
Output:
Trying to initialize a N with value Integer.MAX_VALUE + 1
N = -2147483648
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Integer.MIN_VALUE is a constant in the Integer class of java.lang package that specifies that stores the minimum possible value for any integer variable in Java. The actual value of this is
-2^31 = -2147483648
Example 3:
Output:
Integer.MIN_VALUE = -2147483648
Any integer variable cannot store any value below this limit. Upon doing so, the memory will overflow and the value will get positive.
Example 2: Trying to initialize a variable value Integer.MIN_VALUE - 1
