如果这个文本文件是汉字的,代码如下:
import java.io.*;
public class FileIn {
/**
* Creates a new instance of <code>FileIn </code>.
*/
public FileIn() {
}
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
// TODO code application logic here
try
{FileInputStream rf=new FileInputStream("d:\\ls.txt");
int b;
while((b=rf.read())!=-1)
System.out.print((char)b);
rf.close();
}
catch(IOException ie)
{System.out.println(ie);
}
}
}
此文本文件是D盘ls文件夹下的ls.txt,结果运行时不能显示汉字,请问如何显示汉字。
import java.io.*;
public class FileIn {
/**
* Creates a new instance of <code>FileIn </code>.
*/
public FileIn() {
}
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
// TODO code application logic here
try
{FileInputStream rf=new FileInputStream("d:\\ls.txt");
int b;
while((b=rf.read())!=-1)
System.out.print((char)b);
rf.close();
}
catch(IOException ie)
{System.out.println(ie);
}
}
}
此文本文件是D盘ls文件夹下的ls.txt,结果运行时不能显示汉字,请问如何显示汉字。
启发性的代码 import java.io.*;
public class testFile { /**
* Creates a new instance of <code>FileIn </code>.
*/
public testFile() {
}
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
// TODO code application logic here
try
{
//FileInputStream rf=new FileInputStream("d:\\ls.txt");
//这个是字节流用,一般不用来读文本文件
FileReader fr = new FileReader("d:\\ls.txt");
BufferedReader br = new BufferedReader(fr);
String temp;
while((temp=br.readLine())!=null){
System.out.println(temp);
}
br.close();
}catch(IOException ie)
{
System.out.println(ie);
}finally{
}
}
}
字节流的话就练你的字符编码了,记住一点就不会有乱码,就是写的时候和读的时候用一种字符编码
import java.awt.event.*;
import java.io.FileReader;import javax.swing.*;public class openfile extends JFrame{
JButton b1=new JButton("选择文件");
JTextField t1=new JTextField(20);
JTextArea result=new JTextArea();
JButton b2=new JButton("打开");
FileReader myfile;
Font zi=new Font("宋体",Font.TYPE1_FONT,15);
public openfile() {
setTitle("文件打开演示");
setLayout(null);
setSize(700, 600);
setResizable(false);
this.setBackground(Color.DARK_GRAY);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Dimension scr = Toolkit.getDefaultToolkit().getScreenSize();
Dimension frm = this.getSize();
setLocation( (scr.width - frm.width) / 2,
(scr.height - frm.height) / 2 );
b1.setBounds(50, 30, 100, 25);
t1.setBounds(180,30 , 180, 25);
JScrollPane s1 = new JScrollPane(result);
result.setBackground(Color.lightGray);
result.setFont(zi);
s1.setBounds(20, 100, 650, 450);
b2.setBounds(400, 30, 80, 25);
add(b1);
add(t1);
add(s1);
add(b2);
b1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
FileDialog my=new FileDialog(openfile.this);
my.setVisible(true);
t1.setText(my.getDirectory()+my.getFile());
}
});
b2.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
try{
myfile=new FileReader(t1.getText());
int show=myfile.read();
while(show!=-1){
result.append((char)show+"");
show=myfile.read();
}
}
catch(Exception ee){}
}
});
setVisible(true);
}
public static void main(String[] args){
new openfile();
}