MaxVariables.java

public class MaxVariables {
    public static void main(String[] args) {
        byte largestByte = Byte.MAX_VALUE;
        short largestShort = Short.MAX_VALUE;
        int largestInteger = Integer.MAX_VALUE;
        long largestLong = Long.MAX_VALUE;
        // real numbers
        float largestFloat = Float.MAX_VALUE;
        double largestDouble = Double.MAX_VALUE;
        // other primitive types
        char aChar = 'S';
        boolean isuppercase = Character.isUpperCase(aChar);
        // display them all
        System.out.println("The largest byte value is " + largestByte);
        System.out.println("The largest short value is " + largestShort);
        System.out.println("The largest integer value is " + largestInteger);
        System.out.println("The largest long value is " + largestLong);
        System.out.println("The largest float value is " + largestFloat);
        System.out.println("The largest double value is " + largestDouble);

        if (isuppercase) {
            System.out.println("The character " + aChar + " is upper case.");
        } else {
            System.out.println("The character " + aChar + " is lower case.");
        }
        System.out.println("The value of aBoolean is " + isuppercase);
    }
}