FilesExpand file tree

 master

/

J16_12.java

Copy path

BlameMore file actions

BlameMore file actions

Latest commit

 

History

History

History

53 lines (47 loc) · 1.17 KB

 master

/

J16_12.java

Top

File metadata and controls

• Code
• Blame

53 lines (47 loc) · 1.17 KB

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

package chapter16;

/* J16_12.java */

/* Using List Component */

import java.awt.*;

import java.awt.event.*;

import java.applet.*;

public class J16_12 extends Applet implements ActionListener {

List os, lang;

String msg = "";

public void init() {

os = new List(2, false);

lang = new List(3, true);

// add items to os list

os.add("Windows 7");

os.add("Windows 10");

os.add("Solaris");

os.add("MacOS");

os.select(1);

// add items to lang list

lang.add("C");

lang.add("CPP");

lang.add("Java");

lang.add("Oracle");

lang.select(2);

// add lists to window

add(os);

add(lang);

// register to receive action events

os.addActionListener(this);

lang.addActionListener(this);

}

public void actionPerformed(ActionEvent ae) {

repaint();

}

// display current selections.

public void paint(Graphics g) {

int idx[];

msg = "Current Operating System: ";

idx = os.getSelectedIndexes();

for(int i=0; i<idx.length; i++)

msg += os.getItem(idx[i]) + " ";

g.drawString(msg, 10, 100);

msg = "Current Language: ";

msg += lang.getSelectedItem();

g.drawString(msg, 10, 120);

}

}