Maximum of Decimal Numbers

Maximum of Decimal Numbers

   March 31, 2018       Unknown

---

Write an applet that allows user to input three decimal numbers and it determines and return the largest of them.

The program
//Finding the maximum of three floating point numbers

import java.awt.Container;

import javax.swing.*;

public class MaximumTest extends JApplet{
 
  public void init()
  {
    //allows the user to obtain input as a string.

    String s1 = JOptionPane.showInputDialog("Enter first floating-point value");
    String s2 = JOptionPane.showInputDialog("Enter second floating-point value");
    String s3 = JOptionPane.showInputDialog("Enter third floating-point value");
   
    //method Double.parseDouble is used to convert the strings input by the user to double values
    double number1 = Double.parseDouble( s1 );
    double number2 = Double.parseDouble( s2 );
    double number3 = Double.parseDouble( s3 );
   
    //method maximum return returns the result to init, using a return statement
    //this program assigns the result to variable max
    double max = maximum(number1, number2, number3);
   
    //create JTextArea to display results
    JTextArea outputArea = new JTextArea();
   
    //display numbers and maximum value
    outputArea.setText("number1: " + number1 + "\nnumber2: " + number2 + "\nnumber3: " + number3 + "\nMaximum is: " + max );
   
    //get applet's GUI component to display area
    Container container = getContentPane();
   
    //attach outputArea to container
    container.add(outputArea);
  }
 
  public double maximum(double x, double y, double z )
  {
    return Math.max(x, Math.max(y, z));
  }
}