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Reading and writing file in java

Posted By:satyapriyanayak       Posted Date: June 30, 2014    Points: 40    Category: Javascript    URL: http://www.dotnetspark.com  

In this Code Snippets we will know how to read and write to a file in java.

/*File reading by using FileInputStream/FileReader*/
import  java.io.*;
import java.util.*;
public class readFile
public static void main(String arg[])throws Exception
System.out.print("Provide name of file to read ");
Scanner sc=new Scanner(System.in);
String s=sc.next();
//FileInputStream fis=new  FileInputStream(s);
FileReader fis=new  FileReader(s);
int x;


javac readFile.java
java readFile

/*File writing by using FileOutputStream/FileWriter*/
import  java.io.*;
import java.util.*;
public class writeFile
public static void main(String arg[])throws Exception
Scanner sc=new Scanner(System.in);
System.out.print("Provide file name:");
String fname=sc.next();
System.out.print("Provide data to be written:");
String data=sc.next();
//To use FileWriter
 FileWriter fw=new FileWriter(fname,true);


javac writeFile.java
java writeFile


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