Question

I have 3 class file, when i compile the class which extends the other class gives compilation error like symbol not found.

public class  Animal {  
    public static void hide() {  
        System.out.println("Hide Method Of Animal");  
    }  

    public void override() {  
        System.out.println("The Override method of Animal");  
    }  
}  

public class Cat extends Animal {  
    public static void hide() {  
        System.out.println("Hide Method Of Cat");  
    }  

    public void override() {  
        System.out.println("The Override method of Animal");  
    }  
}  

public class TestAnimal {  
    public static void main(String args[]) {  
        Cat myCat = new Cat();  
        Animal myAnimal =  (Animal)myCat;  
        myAnimal.hide();  
        myAnimal.override();  
    }  
}  

I get this error:

TestAnimal.java:6: cannot find symbol  
symbol  : class Cat  
location: class com.Test.TestAnimal  
            Cat myCat = new Cat();  
            ^  

Any help on this???

Answer 1

Yes, see if there is a .class file for each .java file after you compile. If not, make sure that each one has a .class file.

When you run, use the -classpath argument to point to the directory where all the .class files live.

You sound like you could use some instruction on compiling and running Java.

http://www.horstmann.com/bigj/help/compiler/tutorial.html

Here’s the spoon feeding answer:

1. Go to your d:\Mine\CoreJava\Programming directory in a command
   shell.
2. Create a directory /classes
3. Compile by typing javac -d classes -cp classes src/*.java
4. You should see all the .class files created at once.
5. Run by typing java -cp .;classes FullClassNameOfYourMain