Catching Multiple Exception Types To Improve Type Handling - Java Language Basics

Java examples for Language Basics:try catch finally

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Description

Catching Multiple Exception Types To Improve Type Handling

Demo Code

import java.io.IOException;
import java.net.URI;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.InputMismatchException;
import java.util.NoSuchElementException;
import java.util.Scanner;
import java.util.logging.Level;
import java.util.logging.Logger;

public class Main {

    private static final Logger logger = Logger.getLogger("log.txt");

    public static void main(String[] args) {
        System.out.print("Enter a number: ");
        try {/*from   ww  w. java2  s .c o  m*/
            Scanner scanner = new Scanner(System.in);
            int number = scanner.nextInt();
            if (number < 0) {
                throw new InvalidParameter();
            }
            System.out.println("The number is: " + number);
            if(number>10) {
                throw new AssertionError("Number was too big",new Throwable("Throwable assertion message"));
            }
        } catch (InputMismatchException | InvalidParameter e) {
            logger.log(Level.INFO, "Invalid input, try again");
            e.addSuppressed(new Throwable());
            System.out.println("Invalid input, try again");
        } catch (final Exception e) {
            logger.log(Level.INFO, "Invalid input, try again");
            System.out.println("Invalid input, try again");
        }
    }
}
class InvalidParameter extends java.lang.Exception {

    public InvalidParameter() {
        super("Invalid Parameter");
    }
}

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