What is void init in Java?

The init method always appears as public void init() The word void means that init does not return a value to the object that invoked it. Since nothing appears within the (), no arguments are ever given to the init method.

What does init () mean in Java?

The term init() is a method name in Java. The name is followed by Java code within { and }. A method has a name, such as init, and parentheses, such as ( ). The parentheses may contain arguments if the method is intended to receive some information to use in its statements.

What is the use of public void init?

The term public is an access modifier, and it means that other class files can reference this method. In a JApplet subclass such as MyProgram, the init() method is called automatically by the browser when the Java code is loaded and run. The term void means that the method will not return a value.

Why do we use void in Java?

Void: It is a keyword and used to specify that a method doesn’t return anything. As main() method doesn’t return anything, its return type is void. As soon as the main() method terminates, the java program terminates too.

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Can init be overridden?

Overriding init()

When extending GenericServlet or HttpServlet, you must either override init(ServletConfig) to first call super. init(ServletConfig) or simply override the init() method that takes no arguments. … This method enables other servlet methods to access the variable.

What does init error mean?

This error message indicates a board error. The unit’s main PCB should be replaced and/or the unit should be serviced by a licensed technician.

What is AWT?

AWT stands for Abstract window toolkit is an Application programming interface (API) for creating Graphical User Interface (GUI) in Java. It allows Java programmers to develop window-based applications.

What is void init?

The word void means that init does not return a value to the object that invoked it.

What is destroy () method in Java?

The destroy() method is a method of Java Process class. It is an abstract method defined by a Process class. This method is used to terminate or simply kill a process.

What is Self in Java?

A self type refers to the type on which a method is called (more formally called the receiver). If a self type is used in an inherited method, it represents a different type in each class that declares or inherits that method–namely that specific class, no matter whether it declared or inherited the method.

What are voids Java?

void is a Java keyword. Used at method declaration and definition to specify that the method does not return any type, the method returns void .

What is the purpose of the void?

In computer programming, when void is used as a function return type, it indicates that the function does not return a value. When void appears in a pointer declaration, it specifies that the pointer is universal. When used in a function’s parameter list, void indicates that the function takes no parameters.

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What is opposite of void in Java?

static means that the method is associated with the class, not a specific instance (object) of that class. This means that you can call a static method without creating an object of the class. void means that the method has no return value. If the method returned an int you would write int instead of void .

Can we override convenience init Swift?

It’s not illogical to override a convenience initializer. Instead, it’s unsafe to override a convenience initializer — in the context of all the other rules about designated and convenience initializers, and the two-passes of initializations, and order in which initialization occurs.

What is convenience init in Swift?

A convenience initializer is a secondary initializer that must call a designated initializer of the same class. It is useful when you want to provide default values or other custom setup. A class does not require convenience initializers.

What does super () __ Init__ do?

__init__() of the superclass ( Square ) will be called automatically. super() returns a delegate object to a parent class, so you call the method you want directly on it: super(). area() . Not only does this save us from having to rewrite the area calculations, but it also allows us to change the internal .