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| java help |
Expert:Maurice
Code a try statement that parses a string variable named quantityString
to an int variable and then calls the calculateDiscount method and assigns the return value to a double variable named discountPct. Code a catch block for a NumberFormatException that prints the message “Invalid integer” to the console. Don’t code a catch block for the IllegalArgumentException. Write code that prints the message “Try statement completed” to the console regardless of whether a NumberFormatException or an IllegalArgumentException occurs. And write code that prints the message “No illegal argument” if a NumberFormatException occurs, but not if an IllegalArgumentException occurs.
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| Answers |
Hi friend,
import java.io.*;
public class CalDiscount
{
public static void main(String[] args) throws IOException
{
double calculateDiscount = calculateDiscount();
System.out.println("calculateDiscount : " + calculateDiscount);
}
public static double calculateDiscount() throws IOException
{
double discountPct=0;
InputStreamReader isr = new InputStreamReader(System.in);
BufferedReader bufReader = new BufferedReader(isr);
System.out.println("Enter the value ");
try
{
discountPct = Double.parseDouble(bufReader.readLine());
System.out.println("Try statement completed");
}
catch(NumberFormatException e)
{
System.out.println("Invalid integer.");
}
return discountPct;
}
}
Thanks
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