【文件属性】:
文件名称:java抽象类
文件大小:43B
文件格式:JAVA
更新时间:2014-12-20 12:16:42
抽象类
抽象类import java.awt.*;
import javax.swing.*;
import java.io.*;
class JTextAreaTest extends JFrame{
JTextArea t;
JTextAreaTest(){
super("JTextAreaTest&JScrollpane Test");
this.setDefaultCloseOperation(this.EXIT_ON_CLOSE);
Container c = this.getContentPane();
c.setLayout(new FlowLayout());
init();
c.add(new JLabel("My Java Reader"));
c.add(new JScrollPane(t));
this.setBounds(300,300,500,300);
this.setVisible(true);
}
void init(){
t = new JTextArea(10,35);
t.setText(getFileText());
t.setFont(new Font("",Font.PLAIN,16));
t.setLineWrap(true);
}
String getFileText(){
byte[] b = null;
try{
FileInputStream in = new FileInputStream("read.txt");
int l = in.available();
b = new byte[l];
in.read(b);
in.close();
}
catch(IOException e){}
return new String(b);
}
public static void main(String[] args){
new JTextAreaTest();
}
}