// Fig. 2.20: Comparison.java
// Compare integers using if statements, relational operators
// and equality operators.

// Java packages
import javax.swing.JOptionPane;

public class Comparison {

  // main method begins execution of Java application
  public static void main( String args[] )
  {
    String firstNumber;   // first string entered by user
    String secondNumber;  // second string entered by user
    String result;        // a string containing the output

    int number1;          // first number to compare
    int number2;          // second number to compare

    // read first number from user as a string
    firstNumber = JOptionPane.showInputDialog( "Enter first integer:" );

    // read second number from user as a string
    secondNumber =
        JOptionPane.showInputDialog( "Enter second integer:" );

    // convert numbers from type String to type int
    number1 = Integer.parseInt( firstNumber );
    number2 = Integer.parseInt( secondNumber );

    // initialize result to empty String
    result = "";

    if ( number1 == number2 )
      result = result + number1 + " == " + number2;

    if ( number1 != number2 )
      result = result + number1 + " != " + number2;

    if ( number1 < number2 )
      result = result + "\n" + number1 + " < " + number2;

    if ( number1 > number2 )
      result = result + "\n" + number1 + " > " + number2;

    if ( number1 <= number2 )
      result = result + "\n" + number1 + " <= " + number2;

    if ( number1 >= number2 )
      result = result + "\n" + number1 + " >= " + number2;

    // Display results
    JOptionPane.showMessageDialog( null, result, "Comparison Results",
                                   JOptionPane.INFORMATION_MESSAGE );

    System.exit( 0 );  // terminate application

  } // end method main

} // end class Comparison