change throws IOException

hello everyone!

I want move throws IOException from main method to other method.
Example:

Code:

---

import java.io.*;

public class passSample
{
    public static void main(String args[]) throws IOException
    {
        InputStreamReader isReader = new InputStreamReader(System.in);
        BufferedReader br = new BufferedReader(isReader);
        FileWriter myFile = new FileWriter("E:/test.txt");
        BufferedWriter bw = new BufferedWriter(myFile);
                   
        System.out.println("Nhap vao, go~ 010 de ket thuc.");
        String str = new String();
        while( !(str = br.readLine()).equalsIgnoreCase("010")  )
        {
            bw.write(str);           
            bw.newLine();           
        }     
        bw.flush();
        myFile.close();
    }
}

---

to

Code:

---

import java.io.*;

public class passSample
{
    public static void abc()throws IOException
  {
         
        InputStreamReader isReader = new InputStreamReader(System.in);
        BufferedReader br = new BufferedReader(isReader);
        FileWriter myFile = new FileWriter("E:/test.txt");
        BufferedWriter bw = new BufferedWriter(myFile);
                   
        System.out.println("Nhap vao, go~ 010 de ket thuc.");
        String str = new String();
        while( !(str = br.readLine()).equalsIgnoreCase("010")  )
        {
            bw.write(str);           
            bw.newLine();           
        }     
        bw.flush();
        myFile.close();
  }
    public static void main(String args[])
    {
        abc();
    }
}

---

but not success. how i must

Put all your code in your abc() method in a try catch block and catch the IOException (and handle the exception); therefore you can remove the 'throws IOException' from your abc() method and therefore there is no need to anticipate for such an exception in your main() method.

kind regards,

Jos

Hai pls check this
import java.io.*;

public class passSample
{
static FileWriter myFile=null;
public static void main(String args[])
{
toFile();

}
public static void toFile(){
try {
InputStreamReader isReader = new InputStreamReader(System.in);
BufferedReader br = new BufferedReader(isReader);
myFile= new FileWriter("E:/test.txt");
BufferedWriter bw = new BufferedWriter(myFile);

System.out.println("Nhap vao, go~ 010 de ket thuc.");
String str = new String();
while( !(str = br.readLine()).equalsIgnoreCase("010") )
{
bw.write(str);
bw.newLine();
}
bw.flush();

}
catch (Exception ex) {
System.out.println (ex);
}
finally {
try {
myFile.close();

}
catch (Exception ex) {
}

}


}
}

thanks

Hi,
Some of the suggestions for ur code.
1.U have to close BufferedWriter,BufferedReader along with the file.

2.Before closing just check if it is null.

3.Don't put empty catch block.Try to print s.o.p for easy debugging

@RamyaSivakanth: if don't put empty catch block them what you put there ?
try {
myFile.close();

}
catch (Exception ex) {
}

}

I hope you help me

for you: what we should use: Scanner or InputStreamReader to read and write file.

thank

thanks remya for your valuable suggession and its good to put sop in catch block
then y ur checking the reader is null that please explain

if u use Scanner class then u has to know which type of data is comming eg
Scanner sc = new Scanner(System.in);
int i = sc.nextInt();
or
Scanner sc = new Scanner(new File("myNumbers"));
while (sc.hasNextLong()) {
long aLong = sc.nextLong();
}

means the programmer must know prevoiusly which type data will come either int string,long etc but for InputStreamReader any data will take as string then change to as per ur need

thank you, Scanner good