Display Restrictions of Data Type in Java

Each data type in Java has a minimum and maximum range, such as Integer.

Minimum =　-2147483648
Maximum =　2147483647

Assuming for Integer, if the value exceeds the maximum range shown above, it will cause an overflow. However, if the value is less than the minimum range shown above, it will cause underflow.

The following program displays the limits of data types in Java.

Example

public class Demo {
　　　public static void main(String[] args) {
　　　　　　System.out.println("Limits of primitive DataTypes");
　　　　　　System.out.println("Byte Datatype values...");
　　　　　　System.out.println("Min = ",　+　Byte.MIN_VALUE);
　　　　　　System.out.println("Max = ",　+　Byte.MAX_VALUE);
　　　　　　System.out.println("Short Datatype values...");
　　　　　　System.out.println("Min = ",　+　Short.MIN_VALUE);
　　　　　　System.out.println("Max = ",　+　Short.MAX_VALUE);
　　　　　　System.out.println("Integer Datatype values...");
　　　　　　System.out.println("Min = ",　+　Integer.MIN_VALUE);
　　　　　　System.out.println("Max = ",　+　Integer.MAX_VALUE);
　　　　　　System.out.println("Float Datatype values...");
　　　　　　System.out.println("Min = ",　+　Float.MIN_VALUE);
　　　　　　System.out.println("Max = ",　+　Float.MAX_VALUE);
　　　　　　System.out.println("Double Datatype values...");
　　　　　　System.out.println("Min = ",　+　Double.MIN_VALUE);
　　　　　　System.out.println("Max = ",　+　Double.MAX_VALUE);
　　　}
}

Output Result

Limits of primitive DataTypes
Byte Datatype values...
Min =　-128
Max =　127
Short Datatype values...
Min =　-32768
Max =　32767
Integer Datatype values...
Min =　-2147483648
Max =　2147483647
Float Datatype values...
Min =　1.4E-45
Max =　3.4028235E38
Double Datatype values...
Min =　4.9E-324
Max =　1.7976931348623157E308

In the above program, we get each data type one by one and use the following properties to get the minimum and maximum values. For example, the data type is Byte.

Byte.MIN_VALUE;
Byte.MAX_VALUE

The above code returns the minimum and maximum values of the Byte data type. Similarly, it applies to other data types.

Min =　-128
Max =　127