Compare Character

 
class MainClass {
  public static void main(String[] args) {
    Character c1 = new Character('6');
    Character c2 = new Character('7');

    char c3 = c1.charValue();
    char c4 = c2.charValue();

    if (c3 < c4)
      System.out.println(c3 + " is less than " + c4);

    if (c1.compareTo(c2) < 0)
      System.out.println(c1 + " is less than " + c4);
  }
}

public class CharacterDemo {
  public static void main(String args[]) {
    Character a = new Character('a');
    Character a2 = new Character('a');
    Character b = new Character('b');

    int difference = a.compareTo(b);

    if (difference == 0) {
      System.out.println("a is equal to b.");
    } else if (difference < 0) {
      System.out.println("a is less than b.");
    } else if (difference > 0) {
      System.out.println("a is greater than b.");
    }

    System.out.println("a is " + ((a.equals(a2)) ? "equal" : "not equal")
        + " to a2.");

    System.out.println("The character " + a.toString() + " is "
        + (Character.isUpperCase(a.charValue()) ? "upper" : "lower")
        + "case.");
  }
}