File–Reading

 

File–Reading

public class reading2 {

    public static void main(String[] args) {

        Reading obj = new Reading();

        obj.openfile();

        obj.readfile();

        obj.closefile();

    }

}

 

import java.io.File;

import java.util.Scanner;

public class Reading {

private Scanner x;

    public void openfile()

    {

        try {

            x= new Scanner(new File("Catch.txt"));

        }

    catch(Exception e)

        {

        System.out.println("you got an error");

        }

    }

    public void readfile()

    {

        while (x.hasNext())

        {

            String a = x.next();

            String b = x.next();

            String c = x.next();

            System.out.println(a + b + c);

        }

    }

    public void closefile()

    {

        x.close();

    }

    }

JAVA–FILE exists or Not !

JAVA–FILE exists or Not !

 

 

 

//main method

import java.io.File;
public class A {
    public static void main(String[] args) {
        File xFile = new File("D:\\ONLINE\\Dropbox\\CSE - WORLD\\Java File\\tx.txt");
        if(xFile.exists())
        {
            System.out.println(xFile.getName()+"    exist");
        }
        else {
            System.out.println("no");
        }
    }
}

//AnotherClass

import java.util.Formatter;

public class B {

    public static void main(String[] args) {
        final Formatter x;
        try {
             x = new Formatter("shadh.txt");
            System.out.println("you create a file");
        }
        catch (Exception e)
        {
            System.out.println("you got an error");
        }
    }

}