The JDK 1.02 event model uses an event inheritance or bubbling approach. In this model, components are required to handle their own events. If they do not handle... Read more »
A method’s throws clause must declare any checked exceptions that are not caught within the body of the method. Read more »
this() is used to invoke a constructor of the same class. super() is used to invoke a superclass constructor. Read more »
The garbage collector invokes an object’s finalize() method when it detects that the object has become unreachable. Read more »
A field variable is a variable that is declared as a member of a class. A local variable is a variable that is declared local to a method. Read more »
The ObjectInputStream class supports the reading of objects from input streams. Read more »
The Java runtime system generates RuntimeException and Error exceptions. Read more »
A Choice is displayed in a compact form that requires you to pull it down to see the list of available choices. Only one item may be selected from a Choice. A List... Read more »
A program’s main() method has a void return type. Read more »
When a task’s interrupt() method is executed, the task enters the ready state. The next time the task enters the running state, an InterruptedException is... Read more »
Two methods may not have the same name and argument list but different return types. Read more »
The non-Unicode letter characters $ and _ may appear as the first character of an identifier Read more »
By associating Checkbox objects with a CheckboxGroup. Read more »
A protected method may only be accessed by classes or interfaces of the same package or by subclasses of the class in which it is declared. Read more »