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();
}
}write a program in which an abstract class is being defined containg an abstract method omputer(int a, int b) and a non abstract method as well
abstract class Sum{
public abstract int compute(int a, int b);
public void disp(){
System.out.println("Method of class Sum");
}
}
class Demo extends Sum{
public int compute(int a, int b){
return a+b;
}
public static void main(String args[]){
Sum obj = new Demo();
System.out.println(obj.compute(3, 7));
obj.disp();
}
}how to create an abstract method in java
abstract class Scratch{
// cannot be static
abstract public void hello();
abstract String randNum();
}
interface Other{
//all methods in an interface are abstract
public void bye();
String randDouble();
}Copyright © 2021 Codeinu
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