Java fundamentals-Input and output: 1. Write Textrw.java java application, the function of the program is: first write their own number and name to TextRw.txt, read the information in TextRw.txt and display it on the screen.

1. Write Textrw.java java application, the function of the program is: first write their own number and name to TextRw.txt, read the information in TextRw.txt and display it on the screen.

 PackageTest03;ImportJava.io.File;ImportJava.io.FileInputStream;Importjava.io.FileNotFoundException;ImportJava.io.FileOutputStream;Importjava.io.IOException; Public classTEXTRW { Public Static voidMain (string[] args) {File file=NewFile ("D:/textrw.txt"); Try{FileOutputStream out=Newfileoutputstream (file); String nr= "Study No.: 123456, Name: Zhang Shuai"; byte[] b=nr.getbytes (); System.out.println ("Write succeeded");            Out.write (b);        Out.close (); //close the stream and release the resource//input stream read into memory from file bar dataFileInputStream in =Newfileinputstream (file); //array loaded in the data            byte[] b1=New byte[1024]; intI=0; String Str="";  while((i = In.read (B1)) >0)            {                //Combining Data//parameter 1-start positionstr + =NewString (b1,0, i);                    } System.out.println (str); } Catch(Exception e) {//TODO Auto-generated catch blockE.printstacktrace (); }    }}

Java fundamentals-Input and output: 1. Write Textrw.java java application, the function of the program is: first write their own number and name to TextRw.txt, read the information in TextRw.txt and display it on the screen.