From 33613a85afc4b1481367fbe92a17ee59c240250b Mon Sep 17 00:00:00 2001 From: Sven Eisenhauer Date: Fri, 10 Nov 2023 15:11:48 +0100 Subject: add new repo --- .../hjp5/examples/CalculatorApplet2.java | 35 ++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 Master/Reference Architectures and Patterns/hjp5/examples/CalculatorApplet2.java (limited to 'Master/Reference Architectures and Patterns/hjp5/examples/CalculatorApplet2.java') diff --git a/Master/Reference Architectures and Patterns/hjp5/examples/CalculatorApplet2.java b/Master/Reference Architectures and Patterns/hjp5/examples/CalculatorApplet2.java new file mode 100644 index 0000000..83aca15 --- /dev/null +++ b/Master/Reference Architectures and Patterns/hjp5/examples/CalculatorApplet2.java @@ -0,0 +1,35 @@ +/* CalculatorApplet2.java */ + +import java.awt.*; +import java.awt.event.*; +import java.applet.*; + +public class CalculatorApplet2 +extends Applet +implements ActionListener +{ + private TextField tf; + + public void init() + { + setBackground(Color.lightGray); + setLayout(new GridLayout(2, 1)); + tf = new TextField("777"); + add(tf); + Panel p = new Panel(); + for (int i = 1; i <= 1000; i *= 10) { + Button b = new Button("+" + i); + b.addActionListener(this); + p.add(b); + } + add(p); + } + + public void actionPerformed(ActionEvent event) + { + String cmd = event.getActionCommand(); + int n1 = Integer.parseInt(tf.getText()); + int n2 = Integer.parseInt(cmd.substring(1)); + tf.setText("" + (n1 + n2)); + } +} \ No newline at end of file -- cgit v1.2.3