The code below will show the minimum and the maximum value of Java primitive data types. Note: Unlike other languages(e.g. C/C++), Java doesn't provide unsigned types of its integers.

The code

package net.openwritings.java.lang;
 
public class BoundariesOfPrimitiveDataTypes
{
    public static void main(String[] args)
    {
        String s = "";
 
        // Byte
        s = String.format("%-24s: min = %,-27d, max = %,-27d",
                            Byte.class, Byte.MIN_VALUE, Byte.MAX_VALUE);
        System.out.println(s);
 
        // Short
        s = String.format("%-24s: min = %,-27d, max = %,-27d",
                            Short.class, Short.MIN_VALUE, Short.MAX_VALUE);
        System.out.println(s);
 
        // Integer
        s = String.format("%-24s: min = %,-27d, max = %,-27d",
                            Integer.class, Integer.MIN_VALUE, Integer.MAX_VALUE);
        System.out.println(s);
 
        // Long
        s = String.format("%-24s: min = %,-27d, max = %,-27d",
                            Long.class, Long.MIN_VALUE, Long.MAX_VALUE);
        System.out.println(s);
 
        // Float
        s = String.format("%-24s: min = %-27s, max = %,f", 
                            Float.class, Float.MIN_VALUE, Float.MAX_VALUE);
        System.out.println(s);
 
        // Double
        s = String.format("%-24s: min = %-27s, max = %s", 
                            Double.class, Double.MIN_VALUE, Double.MAX_VALUE);
        System.out.println(s);
 
        // Boolean
        s = String.format("%-24s: min = %-27b, max = %b", 
                            Boolean.class, Boolean.FALSE, Boolean.TRUE);
        System.out.println(s);
 
    }
}

The output

class java.lang.Byte    : min = -128                       , max = 127                        
class java.lang.Short   : min = -32,768                    , max = 32,767                     
class java.lang.Integer : min = -2,147,483,648             , max = 2,147,483,647              
class java.lang.Long    : min = -9,223,372,036,854,775,808 , max = 9,223,372,036,854,775,807  
class java.lang.Float   : min = 1.4E-45                    , max = 340,282,346,638,528,860,000,...,000.000000
class java.lang.Double  : min = 4.9E-324                   , max = 1.7976931348623157E308
class java.lang.Boolean : min = false                      , max = true

Github

https://github.com/xuanngo2001/java-small/blob/master/src/net/openwritings/java/lang/BoundariesOfPrimitiveDataTypes.java

Java

About the author

Xuan Ngo is the founder of OpenWritings.net. He currently lives in Montreal, Canada. He loves to write about programming and open source subjects.

Boundaries of primitive data types in Java

The code

The output

Github

About the author