Scanner class problem

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November 6th, 2012, 11:24 AM

maxstudies

Registered User

Join Date: Nov 2012

Posts: 1

Time spent in forums: 29 m 47 sec
Reputation Power: 0

Swing - Scanner class problem

uide.java:2: cannot resolve symbol
symbol : class Scanner
location: package util
import java.util.Scanner;
^
uide.java:9: cannot resolve symbol
symbol : constructor FileInputStream ()
location: class java.io.FileInputStream
FileInputStream file = new FileInputStream();
^
uide.java:54: open(java.lang.String) has private access in java.io.
FileInputStream
file.open(" F:\\abcd.txt");

here is the source which is written

import java.io.*;
import java.util.Scanner;
public class uide
{
public static void main(String args[])throws IOException
{
InputStreamReader reader = new InputStreamReader(System.in);
BufferedReader input = new BufferedReader(reader);
FileInputStream file = new FileInputStream();
System.out.println("ENTER THE CORRESPONDING CHAPTER NO.");
String q0 = input.readLine();
System.out.println("");
String q1 = input.readLine();
int m9 = Integer.parseInt(q0);
System.out.println('\f');
if (m9==1)
{
System.out.println("");
int m8 = Integer.parseInt(q1);
if(m8==1)
{
System.out.println("define the question");
System.out.println("");
file.open(" F:\\abcd.txt");
}
}
}
}

November 7th, 2012, 08:33 AM

Shaun_B

Contributing User

Join Date: Sep 2012

Posts: 61

Time spent in forums: 1 Day 42 m 57 sec
Reputation Power: 2

Java Code:

Original - Java Code

import java.io.*;
import java.util.Scanner;
public class uide
{
 public static void main(String args[])throws IOException
 {
     InputStreamReader reader = new InputStreamReader(System.in);
     BufferedReader input = new BufferedReader(reader);
     FileInputStream file = new FileInputStream();
     System.out.println("ENTER THE CORRESPONDING CHAPTER NO.");
     String q0 = input.readLine();
     System.out.println("");
     String q1 = input.readLine();
     int m9 = Integer.parseInt(q0);
     System.out.println('\f');
     if (m9==1)
     {
         System.out.println("");
         int m8 = Integer.parseInt(q1);
         if(m8==1)
         {
             System.out.println("define the question");
             System.out.println("");
             file.open(" F:\\abcd.txt");
            }
        }
    }
}

Firstly, I can't see where you are using the Scanner? It seems to be an unused import. Secondly, please use the Highlight tag so that your code is lined up properly.

Also, when you are dealing with file handling, you should always try and catch.

Here is your code without errors - although I'm not saying it's going to be doing what you want it to... it just compiles okay:

Java Code:

Original - Java Code

import java.io.*;
import java.util.Scanner;
public class uide
{
    public static void main(String args[])throws IOException
    {
        InputStreamReader reader = new InputStreamReader(System.in);
        BufferedReader input = new BufferedReader(reader);
        File file = new File("F://abcd.txt");
        FileInputStream fin = null;
        System.out.println("ENTER THE CORRESPONDING CHAPTER NO.");
        String q0 = input.readLine();
        System.out.println("");
        String q1 = input.readLine();
        int m9 = Integer.parseInt(q0);
        System.out.println('\f');
        if (m9==1)
        {
            System.out.println("");
            int m8 = Integer.parseInt(q1);
            if(m8==1)
            {
                System.out.println("define the question");
                System.out.println("");
                fin = new FileInputStream("F://abcd.txt");
            }
        }
    }
}

It'd be an idea if you say exactly what you are trying to achieve, rather than randomly pasting code.

Good luck though.

Regards,

Shaun.

Swing - Scanner class problem

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