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In java.lang package, Java includes a wrapper class called Character. A single field of type char is contained in a Character object. The Character class provides several useful static (class) methods for manipulating characters. The Character constructor can be used to create a Character object. Constructor of Character wrapper class: Methods of Character Wrapper class: Methods […]
August 27, 2022 | Java | No comments
In java.lang package, there is a wrapper class Boolean. A value of the primitive type boolean is wrapped in an object by the Boolean class. An object of type Boolean has a single field with the type boolean. Constructors for creating Boolean object: Methods of Boolean Wrapper class: Methods Description boolean booleanValue() Returns a primitive boolean […]
August 27, 2022 | Java | No comments
The Double class is a wrapper class for the primitive type double. It contains several methods for dealing with double values effectively, such as converting them to string representations and vice versa. A Double object can only hold one double value. Constructor of Double wrapper class: There are mainly two constructors to initialize a Double-object […]
August 27, 2022 | Java | No comments
The Float class is a wrapper class for the primitive type float. It contains several methods for dealing with float values effectively, such as converting them to string representations and vice versa. A Float object can only hold one float value. Constructor of float wrapper class: There are mainly two constructors to initialize a Float […]
August 27, 2022 | Java | No comments
The Short class is a wrapper class for the primitive type short. It contains several methods for dealing with short values effectively, such as converting them to string representations and vice versa. Constructors: To initialize a Short object, there are primarily two constructors- Methods of Short wrapper class: Methods Description int compareTo(Long b) -If the invoked […]
August 27, 2022 | Java | No comments
The Byte class creates an object out of a primitive type byte value. An object of type Byte has a single field of type byte. SignedBytes and UnsignedBytes are the methods that specifically treat bytes as signed or unsigned. Byte wrapper class Constructor: Methods of Byte class: Method Description static Byte valueOf() This method returns […]
August 21, 2022 | Java | No comments
A Wrapper class is one whose object contains or wraps primitive data types. When we create an object for a wrapper class, it has a field where we can store primitive data types. To put it another way, we can turn a primitive value into a wrapper class object. Wrapper Classes Are Required : They […]
August 20, 2022 | Java | No comments
Java JTable: The JTable class is used to display tabular data. It is made up of rows and columns. Constructors: Java JList: The JList class object represents a list of text items. The list of text items can be configured so that the user can select one or more items. It derives from the JComponent […]
August 19, 2022 | Java | No comments
Containers are essential SWING GUI components. A container is a space in which a component can be placed. A Container in AWT is a component in and of itself, with the ability to add another component to it. Containers at the highest level: It inherits AWT’s Component and Container. It can’t be contained by anything […]
August 17, 2022 | Java | No comments
Swing is a Java Foundation Classes [JFC] framework and an Abstract Window Toolkit [AWT] extension. Swing has much-improved functionality over AWT, including additional components, expanded component features, and superior event management with drag-and-drop support. Unlike AWT, Java Swing provides platform-independent and lightweight components. Features Of Swing Class : Pluggable look and feel Uses MVC architecture […]
August 16, 2022 | Java | No comments