latest interview questions on core java in java

Commas are used to separate multiple statements within the initialization and iteration parts of a forstatement. In Core Java, commas are used in the initialization and iteration parts of a for statement to allow multiple expressions. The syntax of a for statement in Java is as follows: java for (initialization; condition; iteration) { // body of … Read more

Frame. In Core Java, the Frame and Applet containers can have a MenuBar. The MenuBar class is part of the AWT (Abstract Window Toolkit) library in Java, and it is used to create menus in GUI applications. The Frame class represents a top-level window with a title and border, and the Applet class represents an … Read more

TextField and TextArea. In Core Java, the TextComponent class is part of the Abstract Window Toolkit (AWT) and is used for handling text input. Two subclasses of the TextComponent class are: TextField: This class provides a single-line text input field. TextArea: This class provides a multi-line text input area. Both TextField and TextArea are used to accept … Read more

The start() method of the Thread class is invoked to cause an object to begin executing as a separate thread. In Core Java, the method that is invoked to cause an object to begin executing as a separate thread is the start() method. The start() method is defined in the Thread class, and when called on an instance of … Read more

It must provide all of the methods in the interface and identify the interface in its implements clause. In Java, to implement an interface, a class must do the following: Use the implements keyword: In the class declaration, use the implements keyword followed by the name of the interface that you want the class to … Read more