Writing Textrw.java Java applications, the function of the program is to first write its own number and name to TextRw.txt, read the information in TextRw.txt and display it on the screen.

Package Zuoye;

Import Java.io.File;
Import Java.io.FileInputStream;
Import Java.io.FileOutputStream;

public class TEXTRW {
public static void Main (string[] args) {
File File = new file ("D:/zuoye");
if (!file.exists ())
{
File.mkdirs ();
}
File F=new file ("D:/zuoye/textrw.txt");
try {
FileOutputStream out=new FileOutputStream (f);
String nr= "study number: 001\r\n name: Zhang";
Byte[] B=nr.getbytes ();
Out.write (b);
Out.close ();
FileInputStream in=new FileInputStream (f);
Byte[]b1=new byte[1024];
int i=-1;
StringBuilder str=new StringBuilder ();
while ((I=in.read (B1)) >0)
{
Str.append (New String (b1,0,i));
}
In.close ();
System.out.println (str);

} catch (Exception e) {
TODO Auto-generated catch block
E.printstacktrace ();
}




}
}

Run results

Study No.: 001
Name: Zhang

Write Textrw.java Java applications, the function of the program is to write their own school number and name to TextRw.txt, read the information in TextRw.txt and display it on the screen.