IGNOU BCSL 43 2026 2027 - ) Create a Java Applet using appropriate GUI components that accepts a

Question

) Create a Java Applet using appropriate GUI components that accepts an integer from the user and calculates its square upon clicking a button. Use appropriate UI components such as labels, text fields, buttons and proper layout managers, and input validation to handle non-numeric or out-ofrange input

07 Aug 2026

Answer :

Word Count : 515

A Java Applet can be developed to accept an integer from the user through a text field and calculate its square when a button is clicked. The applet can use GUI components such as `Label`, `TextField`, and `Button`, along with a suitable layout manager. Input validation is also necessary so that the program can handle non-numeric and out-of-range values without terminating unexpectedly. The following Java program demonstrates an applet that accepts an integer, calculates its square, and displays the result: ```java import java.applet.Applet; import java.awt.*; import java.awt.event.*; public class SquareApplet extends Applet implements ActionListener { Label inputLabel, resultLabel, messageLabel; TextField inputField, resultField; Button squareButton; public void init() { setLayout(new FlowLayout()); inputLabel = new Label("Enter an integer:"); inputField = new TextField(15); squareButton = new Button("Calculate Square"); resultLabel = new Label("Square:"); resultField = new TextField(15); resultField.setEditable(false); messageLabel = new Label(""); add(inputLabel); add(inputField); add(squareButton); add(resultLabel); add(resultField); add(messageLabel);

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