Question

Error near println

Asked by: Richards

Getting error at   System.in.read();    and want the output only as
Created ConcreteProductA
Created ConcreteProductB
not
Created {0}examples.Factory$ConcreteProductA
Created {0}examples.Factory$ConcreteProductB

I am changing C# code to Java and I am getting an error near System.in.read();
unreported exception java.io.IOException; must be caught or declared to be thrown

For the C# code  class ConcreteProductB : Product   I am changing it to

 static class ConcreteProductB extends Product  . please let me know if this is right.

package examples;
public class Factory {
   
    /** Creates a new instance of Factory */

    public Factory() {
    }

    // Factory Method pattern -- Structural example
   
    public static void main( String[] args ){
        // An array of creators
        Creator[] creators = new Creator[2];
        creators[0] = new ConcreteCreatorA();
        creators[1] = new ConcreteCreatorB();

        for (Creator creator : creators) {
            Product product = creator.FactoryMethod();
            //  Console.WriteLine("Created {0}",
            //    product.GetType().Name);
            System.out.println("Created {0}"  + product.getClass().getName() );
           
        }
       
        // Wait for user
        //  Console.Read();

       System.in.read();  
    }
   
   
    // "Product"
   
    static abstract class Product {
    }
   
    // "ConcreteProductA"
   
    static class ConcreteProductA extends Product {
    }
   
    // "ConcreteProductB"
   
    static class ConcreteProductB extends Product {
    }
   
    // "Creator"
   
    static abstract class Creator {
        public abstract Product FactoryMethod();
    }
   
    // "ConcreteCreator"
   
    static class ConcreteCreatorA extends Creator {
        public Product FactoryMethod() {
            return new ConcreteProductA();
        }
    }
   
    // "ConcreteCreator"
   
    static class ConcreteCreatorB extends Creator {
        public Product FactoryMethod() {
            return new ConcreteProductB();
        }
    }
}

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Asked On
2007-07-08 at 02:09:52ID22681676
Topic

Java Programming Language

Participating Experts
2
Points
125
Comments
2

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Answers

 

by: sciuriwarePosted on 2007-07-08 at 02:30:22ID: 19439564

      System.in.read();  

should be:

try
{
       System.in.read();
}
catch(IOException e)
{
// EX Libris: what error from e.getMessage();
}

By the way, why not enter input via JOptionPane{} ?

;JOOP!

 

by: StillUnAwarePosted on 2007-07-08 at 03:23:40ID: 19439619

As for the class name printing, You can use getSimpleName() of a class:

System.out.println("Created "  + product.getClass().getSimpleName() );

20120131-EE-VQP-002

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