Assignment_LAB_7

(1)

import java.io.IOException;
import java.security.InvalidParameterException;

public class TestException {
    public static void main(String[] args) throws IOException {

            TestException.throwException(5);
            TestException.throwException(-5);
    }

    public static void throwException(int n) throws InvalidParameterException, ArithmeticException, IOException {
        Integer.parseInt("2");
        if (n <= 0) {
            throw new InvalidParameterException("Parameter shoud be grater than 0");
        }
        if (n > 100) {
            throw new IOException("Parameter must be smaller than 100");
        }
        System.out.println(n * n);
    }
}


2(a) & (b)
public class TestIO {

    public static void main(String[] args){
        try {
            FileReader fr = new FileReader("olympic.txt");
            BufferedReader br = new BufferedReader(fr);
            PrintWriter pw = new PrintWriter("processed.txt");
            String s =br.readLine();


            int value=0;


            while(s!=null){
                String[] array = s.split(" ");


                for(int i=1;i<=3;i++){
                     value+= Integer.parseInt(array[i]);
                    System.out.println("Total value is : "+value);
                }

                pw.println(s+"     "+"Total :"+value);
                value =0;
                System.out.println(s);
                s =br.readLine();
            }

                fr.close();
            pw.close();
        } catch (FileNotFoundException e) {

          e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
            }
        }
  }