writefile.java

来自「java2应用开发指南第一版」· Java 代码 · 共 37 行

//WriteFile.java
import java.awt.*;
import java.io.*;
import java.lang.*;
import java.applet.*;

public class WriteFile extends Applet 
{
    String myFile = "writetest";
    File f = new File(myFile);
    DataOutputStream dos;

  public void init() 
{
        String osname = System.getProperty("os.name");
  }
  public void paint(Graphics g) 
{
	 try 
{
  	  dos = new DataOutputStream(
new BufferedOutputStream(new FileOutputStream(myFile),128));
	  dos.writeChars("Cats can hypnotize you when you least expect it\n");
	  dos.flush();
	  g.drawString("Successfully wrote to the file ", 10, 10);
	}
	catch (SecurityException e) 
{
	  g.drawString("writeFile: caught security exception: " + e, 10, 10);
    }
	catch (IOException ioe) 
{
		g.drawString("writeFile: caught i/o exception", 10, 10);
    }
  }
}