/*
 * A class is made generic by placing <> after its name in its declaration.  
 * Inside the <>, put the name used to refer to the type.
 * The name is usually in all capital letters, but this is not required.
 * One class can have multiple parameterized types.  To do so, put multiple type
 * names between the angle brackets, separated by commas.  
 */
public class Named<T> {
	
	// throughtout the class, T is used to refer to the type parameter
	private T object;
	private String name;
	
	public Named(T object, String name) {
		this.object = object;
		this.name = name;
	}
	
	public T getObject() {
		return object;
	}
	
	public String getName() {
		return name;
	}
	
	public void setObject( T newObject ) {
		this.object = newObject;
	}
	
	public void setName( String newName ) {
		this.name = newName;
	}
	
	public String toString() {
		return name + ": " + object.toString();
	}

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		Named<Double> pi = new Named<Double>(3.14159,"pi");
		Named<Double> e = new Named<Double>(2.718281828,"e");
		
		System.out.println(pi);
		
		// this won't compile.  What problems could arise?
//		Named<Object> namedThing = e;
		
		Named<?> namedThing = e;
		
		System.out.println(namedThing);
	}

}