IntegerRange.java

import java.util.Scanner;

public class IntegerRange {
    public static void main(String[] args) {
        //variable
        Scanner range = new Scanner(System.in);
        double theNumber;
        byte byteMin = (byte) (-1 * Math.pow(2, 7)), byteMax = (byte) (Math.pow(2, 7) - 1);
        short shortMin = (short) (-1 * Math.pow(2, 15)), shortMax = (short) (Math.pow(2, 15) - 1);
        int intMin = (int) (-1 * Math.pow(2, 31)), intMax = (int) (Math.pow(2, 31) - 1);
        long longMin = (long) (-1 * Math.pow(2, 63)), longMax = (long) (Math.pow(2, 63) - 1);

        System.out.print("Give me the number!\n$ ");
        theNumber = range.nextDouble();

        if (theNumber < longMin || theNumber > longMax)
            System.out.println(theNumber + " can't be fitted anywhere.");
        else if (theNumber >= byteMin && theNumber <= byteMax)
            System.out.println(theNumber + " can be fitted in:\n* byte\n* short\n* int\n* long");
        else if(theNumber >= shortMin && theNumber <= shortMax)
            System.out.println(theNumber + " can be fitted in:\n* short\n* int\n* long");
        else if(theNumber >= intMin && theNumber <= intMax)
            System.out.println(theNumber + " can be fitted in:\n* int\n* long");
        else
            System.out.println(theNumber + " can be fitted in:\n* long");
    }
}