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import java.awt.*import java.awt.event.ActionEvent
import java.awt.event.ActionListener
import java.awt.event.KeyAdapter
import java.awt.event.KeyEvent
import java.io.*
import javax.swing.*
public class WordProcessSystem extends JFrame{
private JFileChooser chooser
private JTextArea textArea
private File file
private String string = ""
private Font font
public WordProcessSystem(){
super()
setTitle("日记记事本")
setBounds(100, 100,600, 500)
getContentPane().setLayout(new BorderLayout())
getContentPane().setVisible(true)
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE)
JMenuBar menuBar = new JMenuBar()
JMenu menu = new JMenu("文件")
JMenuItem menuItem = new JMenuItem("新建")
menuItem.addActionListener(new ActionListener(){
@Override
public void actionPerformed(ActionEvent e) {
String str1 = JOptionPane.showInputDialog("请输入新建文件名：")
try {
file = new File("E:\\", str1 + ".txt")
if(file.exists()){
JOptionPane.showMessageDialog(null, "文件名已存在！")
}
else{
file.createNewFile()
}
} catch (Exception e1){
}
}
})
chooser = new JFileChooser()
chooser.setCurrentDirectory(new File("."))
JMenuItem menuItem1 = new JMenuItem("打开")
menuItem1.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
int result = chooser.showOpenDialog(null)
if(result == JFileChooser.APPROVE_OPTION){
String str = chooser.getSelectedFile().toString()
try {
file = new File(str)
readFromFile(file)
textArea.setText(string)
} catch (Exception e1) {
}
}
}
})
JMenuItem menuItem2 = new JMenuItem("退出")
menuItem2.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
System.exit(0)
}
})
JMenuItem menuItem3 = new JMenuItem("保存")
menuItem3.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
String string = textArea.getText()
try {
writeToFile(file, string)
} catch (Exception e1) {
}
}
})
menuItem3.addKeyListener(new KeyAdapter(){
public void keyPressed(KeyEvent e){
if(e.getKeyChar() == KeyEvent.VK_C){
String string = textArea.getText()
try {
writeToFile(file, string)
} catch (Exception e1) {
}
}
}
})
JMenuItem menuItem4 = new JMenuItem("另存为")
menuItem4.addActionListener(new ActionListener(){
@Override
public void actionPerformed(ActionEvent e) {
String s1 = JOptionPane.showInputDialog("请输入保存文件路径和文件名：")
file = new File(s1)
System.out.println(file.getPath())
try {
writeToFile(file, string)
System.out.println("aaaa")
} catch (Exception e1) {
}
}
})
menu.add(menuItem)
menu.add(menuItem1)
menu.add(menuItem2)
menu.add(menuItem3)
menu.add(menuItem4)
JMenu menu2 = new JMenu("格式")
final JMenu menu3 = new JMenu("字体")
String []fontString = {"宋体","楷体","隶书"}
final JMenuItem []menu3_1 = new JMenuItem[fontString.length]
for(int i = 0i <fontString.lengthi++){
String changeString = ""
menu3_1[i] = new JMenuItem(fontString[i])
menu3_1[i].setActionCommand(changeString + i)
menu3_1[i].addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e) {
switch (e.getActionCommand().charAt(0)) {
case '0':
font = new Font("宋体",Font.PLAIN,20)
textArea.setFont(font)
break
case '1':
font = new Font("楷体",Font.PLAIN,18)
textArea.setFont(font)
break
case '2':
font = new Font("隶书",Font.BOLD,18)
textArea.setFont(font)
break
default:
break
}
}})
menu3.add(menu3_1[i])
}
JMenu menu4 = new JMenu("字号")
String []fontBig = {"10","15","20","25","30","35","40"}
final JMenuItem []menu4_1 = new JMenuItem[fontBig.length]
for(int i = 0i <fontBig.lengthi++){
String changeString = ""
menu4_1[i] = new JMenuItem(fontBig[i])
menu4_1[i].setActionCommand(changeString + i)
menu4_1[i].addActionListener(new ActionListener(){
@Override
public void actionPerformed(ActionEvent e) {
switch (e.getActionCommand().charAt(0)) {
case '0':
font = new Font(menu3.getText(),Font.PLAIN,10)
textArea.setFont(font)
break
case '1':
font = new Font(menu3.getText(),Font.PLAIN,15)
textArea.setFont(font)
break
case '2':
font = new Font(menu3.getText(),Font.PLAIN,20)
textArea.setFont(font)
break
case '3':
font = new Font(menu3.getText(),Font.PLAIN,25)
textArea.setFont(font)
break
case '4':
font = new Font(menu3.getText(),Font.PLAIN,30)
textArea.setFont(font)
break
case '5':
font = new Font(menu3.getText(),Font.PLAIN,35)
textArea.setFont(font)
break
case '6':
font = new Font(menu3.getText(),Font.PLAIN,40)
textArea.setFont(font)
break
default:
break
}
}})
menu4.add(menu4_1[i])
}
menu2.add(menu3)
menu2.add(menu4)
menuBar.add(menu)
menuBar.add(menu2)
setJMenuBar(menuBar)
textArea = new JTextArea()
textArea.setVisible(true)
textArea.setLineWrap(true)
// textArea.setFont(new Font("宋体",Font.BOLD,20))
add(textArea)
JScrollPane scrollPane = new JScrollPane(textArea)
scrollPane.setSize(600, 410)
scrollPane.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED)
scrollPane.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED)
add(scrollPane)
}
public void readFromFile(File f) throws IOException{
FileReader fReader = new FileReader(file)
BufferedReader bReader = new BufferedReader(fReader)
char []data = new char[10000]
int length = 0
while((length = fReader.read(data)) >0){
string += new String(data,0,length)
}
// string = new String("")
// while(true){
// String s1 = bReader.readLine()
// if(s1 == null){
// break
// }
// string += (s1 + "\n")
bReader.close()
fReader.close()
}
public void writeToFile(File file,String string) throws IOException{
if(!file.exists()){
file.createNewFile()
}
FileWriter fWriter = new FileWriter(file)
fWriter.write(string)
fWriter.close()
}
public static void main(String[] args) {
WordProcessSystem wordProcessSystem = new WordProcessSystem()
wordProcessSystem.setVisible(true)
}
}
不好意思，这个没有实现查找和替换功能，你自己可以加上去。
