diff options
| author | Sven Eisenhauer <sven@sven-eisenhauer.net> | 2023-11-10 15:11:48 +0100 |
|---|---|---|
| committer | Sven Eisenhauer <sven@sven-eisenhauer.net> | 2023-11-10 15:11:48 +0100 |
| commit | 33613a85afc4b1481367fbe92a17ee59c240250b (patch) | |
| tree | 670b842326116b376b505ec2263878912fca97e2 /Master/Reference Architectures and Patterns/hjp5/examples/CalculatorApplet2.java | |
| download | Studium-master.tar.gz Studium-master.tar.bz2 | |
Diffstat (limited to 'Master/Reference Architectures and Patterns/hjp5/examples/CalculatorApplet2.java')
| -rw-r--r-- | Master/Reference Architectures and Patterns/hjp5/examples/CalculatorApplet2.java | 35 |
1 files changed, 35 insertions, 0 deletions
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 |