Java Integer.MAX_VALUE
- Name : Integer.MAX_VALUE
- Value : 2147483647 OR 2^31-1
- Data Type : int (32 bit)
- Integer Range :- -2^31 to 2^31-1 OR -2147483648 to 2147483647
- Binary Representation : 01111111 11111111 11111111 11111111
In Java programming, understanding the constants provided by the Java language is crucial for writing efficient and error-free code. Integer.MAX_VALUE is one such fundamental constant which denotes the largest possible value that can be stored in an integer data type. It is defined under Integer class of Java.lang package
Integer.MAX_VALUE plays a crucial role in ensuring accurate and efficient handling of integer values within Java programs. Understanding of such constant enhances your ability to write robust and reliable code in Java programming. In this article we will understand Integer.MAX_VALUE use cases and behavior with mathematical operation.
Integer.MIN_VALUE
Integer.MAX_VALUE is a maximum possible value that a integer data type can store in Java. It is a constant of Integer Class of Java.lang package.
public class RebootMemory
{
public static void main(String []args)
{
System.out.println("Integer.MAX_VALUE = "+Integer.MAX_VALUE);
}
}Integer.MAX_VALUE = 2147483647
if we up grad or increase Integer.MAX_VALUE that will lead a overflow in memory
Binary Representation of Integer.MAX_VALUE is `01111111 11111111 11111111 11111111` when we increase this value by 1 wraps around to `10000000 00000000 00000000 00000000` which is Integer.MIN_VALUE.
public class RebootMemory
{
public static void main(String []args)
{
System.out.println("Integer.MIN_VALUE = "+Integer.MIN_VALUE);
System.out.println("Integer.MAX_VALUE + 1 = "+(Integer.MAX_VALUE+1));
}
}Integer.MIN_VALUE = -2147483648 Integer.MAX_VALUE + 1 = -2147483648
Type Casting Integer.MAX_VALUE in long , float and double
public class RebootMemory
{
public static void main(String []args)
{
System.out.println("(long)Integer.MAX_VALUE = "+(long)Integer.MAX_VALUE);
System.out.println("(float)Integer.MAX_VALUE = "+(float)Integer.MAX_VALUE);
System.out.println("(double)Integer.MAX_VALUE = "+(double)Integer.MAX_VALUE);
}
}(long)Integer.MAX_VALUE = 2147483647 (float)Integer.MAX_VALUE = 2.1474836E9 (double)Integer.MAX_VALUE = 2.147483647E9
Upgrading Integer.MAX_VALUE with type casting in long , float and double
public class RebootMemory
{
public static void main(String []args)
{
System.out.println("(long)(Integer.MAX_VALUE +1) = "+(long)(Integer.MAX_VALUE +1));
System.out.println("(float)(Integer.MAX_VALUE +1) = "+(float)(Integer.MAX_VALUE +1));
System.out.println("(double)(Integer.MAX_VALUE +1) = "+(double)(Integer.MAX_VALUE +1));
System.out.println("(long)Integer.MAX_VALUE +1 = "+((long)Integer.MAX_VALUE +1));
System.out.println("(float)Integer.MAX_VALUE +1 = "+((float)Integer.MAX_VALUE +1));
System.out.println("(double)Integer.MAX_VALUE +1 = "+((double)Integer.MAX_VALUE +1));
}
}(long)(Integer.MAX_VALUE +1) = -2147483648 (float)(Integer.MAX_VALUE +1) = -2.1474836E9 (double)(Integer.MAX_VALUE +1) = -2.147483648E9 (long)Integer.MAX_VALUE +1 = 2147483648 (float)Integer.MAX_VALUE +1 = 2.1474836E9 (double)Integer.MAX_VALUE +1 = 2.147483648E9