This program reads data from a physical file, create a reference to the file, perform a computation, display the result, close the file
This program reads data
from a physical file,
create a reference to the file,
perform a computation,
display the result,
close the file
package chario;
import java.util.Scanner;
import java.io.*;
//
public class Chario {
//
public static void main(String[] args) throws IOException
{
File file1 = new File("fileOne.txt"); //Create a reference to the physical file
/*
Use Notepad to create a text file named fileOne.txt
which must be in the same directory that src is in
To find src, open your project in NetBeans and hover its name, which is in the top left just below the Projects menu; this will display the path to your project
My project path is, yours will be different
I:\\Ajava\161\WPPractice\IO\charstream\chario
My fileOne.txt is located in chario
*/
Scanner getit = new Scanner( file1 ); // connect a Scanner to the file
int num, square;
num = getit.nextInt();
square = num * num ;
System.out.println("The square of " + num + " is " + square);
getit.close(); //Close the stream
}
}
/*
This is not part of your Java code but the file your code will read
Your path will be different from mine
Create fileOne.txt in
I:\\Ajava\161\WPPractice\IO\charstream\chario
Type an integer
Save fileOne.txt
Execute your program from NetBeans
*/
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