import java.awt.BorderLayout
import java.awt.Button
import java.awt.Color
import java.awt.Frame
import java.awt.GridLayout
import java.awt.Label
import java.awt.Panel
import java.awt.TextField
import java.awt.event.ActionEvent
import java.awt.event.ActionListener
import java.awt.event.WindowAdapter
import java.awt.event.WindowEvent
public class Add {
public static void main (String []args){
new TFrame("java加法")
}
}
class TFrame extends Frame {
TextField tf1,tf2,tf3
TFrame (String s){
super(s)
this.setLocation(200, 200)
this.setLayout(new BorderLayout())
Panel p = new Panel(new GridLayout(1,5,1,20))
tf1 = new TextField("0",5)
tf2 = new TextField("0",5)
tf3 = new TextField("0",5)
tf1.setBackground(Color.green)
tf2.setBackground(Color.green)
tf3.setBackground(Color.green)
Label lb = new Label("+",Label.CENTER)
lb.setBackground(Color.lightGray)
Button bt = new Button("=")
bt.setBackground(Color.gray)
bt.addActionListener(new Action(this))
p.add(tf1)p.add(lb)p.add(tf2)p.add(bt)p.add(tf3)
add(p,BorderLayout.NORTH)
this.addWindowListener(new Close())
pack()
setVisible(true)
}
}
class Close extends WindowAdapter {
@Override
public void windowClosing(WindowEvent e) {
System.exit(0)
}
}
class Action implements ActionListener {
TFrame f = null
Action (TFrame f){
this.f = f
}
public void actionPerformed (ActionEvent e){
int n1 = Integer.parseInt(f.tf1.getText())
int n2 = Integer.parseInt(f.tf2.getText())
f.tf3.setText(String.valueOf("" + (n1+n2)))
}
}
import javax.swing.*import java.awt.event.*
import java.io.*
public class Demo03 extends JFrame implements ActionListener{
private final String _half = "1234567890!@#$%^&*()abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_=+\\|[]:'\",<.>/?（）【】《》“”"
// 全角字库
private final char[] _full = new char[] { '1', '2', '3', '4', '5',
'6', '7', '8', '9', '0', '！', '＠', '＃', '＄', '％', '＾', '＆', '＊',
'（', '）', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k',
'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x',
'y', 'z', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K',
'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X',
'Y', 'Z', '－', '＿', '＝', '＋', '＼', '｜', '【', '】', '；', '：', '\'',
'\'', '，', '〈', '。', '〉', '／', '？', '（', '）', '【', '】', '《', '》',
'『', '』' }
private int row = 14
private int col = 23
private JTextArea jta = new JTextArea()
private JFileChooser jfc = new JFileChooser()
private JMenuItem jmiOpen = new JMenuItem("打开")
public Demo03(){
this.setDefaultCloseOperation(3)
this.add(new JScrollPane(jta))
JMenuBar jmb = new JMenuBar()
this.setJMenuBar(jmb)
JMenu jm1 = new JMenu("文件")
jmb.add(jm1)
jm1.add(jmiOpen)
jmiOpen.addActionListener(this)
this.setSize(300,300)
this.setResizable(false)
this.setVisible(true)
}
public void actionPerformed(ActionEvent e) {
if(e.getSource().equals(jmiOpen)){
int i = jfc.showOpenDialog(this)
System.out.println (i)
if(i==0){
this.setJta(this.getTable(this.getFile(jfc.getSelectedFile())))
}
}
}
private char[] getFile(File file){
try {
String s = ""
StringBuilder builder = new StringBuilder()
BufferedReader br = new BufferedReader(new FileReader(file))
while ((s = br.readLine())!= null) {
builder.append(s)
}
return builder.toString().toCharArray()
}
catch (Exception ex) {
ex.printStackTrace()
}
return null
}
private void setJta(char[][] chars){
StringBuilder builder = new StringBuilder()
for (int i = 0i<rowi++) {
for (int j = 0j<colj++) {
builder.append(chars[i][j])
}
builder.append("\n")
}
jta.setText(builder.toString())
}
private char[][] getTable(char[] chars){
char[][] shuPai = new char[row][col]
int k = 0
for (int j = col-1j>=0j-- ) {
for (int i = 0i<rowi++,k++) {
if(k<chars.length)
shuPai[i][j] = toChar(chars[k])
else
shuPai[i][j] = ' '
}
}
return shuPai
}
private char toChar(char ch) {
Character nch
int pos = _half.indexOf(ch)
if (pos != -1) {
nch = new Character(_full[pos])
} else {
nch = new Character(ch)
}
return nch.charValue()
}
public static void main(String args[]){
new Demo03()
}
}
