The Max Value of an Integer in Java

1. int Data Type in Java
2. Max Value of int in Java

This tutorial introduces the maximum value of an integer in Java and how to get it.

In Java, int is considered a primitive data type used to store numeric values and takes 4 bytes to store data into memory. Java supports signed values, so the int range lies between negative and positive values.

See the below table.

Integer Range in Java

int Data Type in Java

We can store any positive and negative integer values in Java, but the value should lie in between its range. See a simple example below.

public class SimpleTesting {
  public static void main(String[] args) {
    int a = 230;
    System.out.println("Positive integer value " + a);
    int b = -3423;
    System.out.println("Negative integer value " + b);
  }
}

Output:

Positive integer value 230
Negative integer value -3423

Max Value of int in Java

To determine the max value of an integer variable hold, use the MAX_VALUE constant.

Java Integer wrapper class provides two constants, MAX_VALUE and MIN_VALUE, to get max and min values. It is an easy way to know the integer max value in Java.

See the example below.

public class SimpleTesting {
  public static void main(String[] args) {
    int a = 230;
    System.out.println("Positive integer value " + a);
    int b = ((Integer) a).MAX_VALUE;
    System.out.println("Max integer value " + b);
  }
}

Output:

Positive integer value 230
Max integer value 2147483647

Java is a strict language and does not allow storing any value outside the range (2147483647). Here, we tried to store a value larger than the max value and see the Java compiler throws a compile error and stops program execution.

See the example below.

public class SimpleTesting {
  public static void main(String[] args) {
    int a = 2147483648;
    System.out.println("Max integer value+1 " + a);
  }
}

Output:

The literal 2147483648 of type int is out of range