I am learning Java. I am using NetBeans. I created a new project named TestCircle using the default package name provided by NetBeans, which is the same as the file name but all in lower case. The file is TestCircle.java :

Code:
// TestCircle.java
package testcircle;
public class TestCircle {
    public static void main(String[] args) {        
        //Circle myCircle = new Circle();
    }
}
...