Can abstract class have constructor in java
In Java, Abstract classes can have constructors even when they are only called from their concrete subclasses.Can abstract class have constructor in java
In Java, Abstract classes can have constructors even when they are only called from their concrete subclasses.how to create object of abstract class in java
We cannot create objects of an abstract class. To implement features of an abstract class, we inherit subclasses from it and create objects of the subclass. A subclass must override all abstract methods of an abstract class. However, if the subclass is declared abstract, it's not mandatory to override abstract methods.can abstract class have non abstract methods in java
abstract class AbstractDemo { // Abstract class
private int i = 0;
public void display() { // non-abstract method
System.out.print("Welcome to Tutorials Point");
}
}
public class InheritedClassDemo extends AbstractDemo {
public static void main(String args[]) {
AbstractDemo demo = new InheritedClassDemo();
demo.display();
}
}Java Abstract Class and Method
abstract class Language {
// method of abstract class
public void display() {
System.out.println("This is Java Programming");
}
}
class Main extends Language {
public static void main(String[] args) {
// create an object of Main
Main obj = new Main();
// access method of abstract class
// using object of Main class
obj.display();
}
}Copyright © 2021 Codeinu
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