5 ).Write a program to read a file by sending the argument as a file name at runtime.
Here we are using BufferedReader to read the name of the file.
Read the file using FileInputStreamReader then send it to BufferedInputStreamReader to read all the data with InputStreamReader provided mehtods.
Note:
You should have one serialized file or any file to enter the name at runtime .you should enter filename with extension like ' hello.dat '.
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
Read the file using FileInputStreamReader then send it to BufferedInputStreamReader to read all the data with InputStreamReader provided mehtods.
package javabynataraj.iopack; import java.io.BufferedInputStream; import java.io.BufferedReader; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStreamReader; public class FileArgs { public static void main(String[] args)throws IOException { int ch; String fname; BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); System.out.println("Enter file name: "); fname = br.readLine(); FileInputStream fis = new FileInputStream(fname); BufferedInputStream bis = new BufferedInputStream(fis); while((ch=bis.read())!=-1){ System.out.print((char)ch); } fis.close(); bis.close(); } }
Note:
You should have one serialized file or any file to enter the name at runtime .you should enter filename with extension like ' hello.dat '.