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# What is Integer.MAX_VALUE?

## What are Integers?

Integers are numbers that can be written without a fractional component. For example 1,2,3,4,5 are all integers; whereas. 1.2,3.4,4.5 are not.

## Integers in Java

Integers in Java are represented in 2’s complement binary where each integer gets `32-bits` of space. In 32- bits of space, where one bit is used to represent the sign, you can represent that many values.

The `maximum positive number` would be `2^31 - 1`.

## Why 31-bits?

The 32nd bit is used to represent the sign; hence, we use 31-bits for the number. If all `32 bits were 1` then the number would be the `maximum negative number`.

``````class MaxInt {
public static void main( String args[] ) {
System.out.println(Integer.MAX_VALUE);
}
}``````

`Integer.MAX_VALUE` represents the maximum positive integer value that can be represented in 32 bits (i.e., `2147483647`). This means that no number of type Integer that is greater than 2147483647 can exist in Java.

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