Which of the following is the correct way to declare an abstract method inside an abstract class?

easy📝 Syntax Q12 of 15

Java - Abstraction

public abstract class Shape {
    ?
}

Apublic void draw();

Bvoid draw() {}

Cabstract void draw();

Dpublic abstract void draw();

Step-by-Step Solution

Solution:

Step 1: Recall abstract method syntax
Abstract methods must be declared with the 'abstract' keyword and no body, and usually have a visibility modifier.
Step 2: Check each option
public abstract void draw(); correctly declares 'public abstract void draw();'. public void draw(); misses 'abstract', C misses visibility, D has a method body which is invalid for abstract methods.
Final Answer:
public abstract void draw(); -> Option D
Quick Check:
Abstract method = 'public abstract' + no body [OK]

Quick Trick: Abstract methods have no body and use 'abstract' keyword [OK]

Common Mistakes:

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