[Solved] Find the error in this Java code related to inheritance:class Parent { void display() { System.out.println("Parent"); } } class Child extends Parent { void display() { System.out.println("Child");... | Java

Java - Inheritance

Find the error in this Java code related to inheritance:

class Parent {
  void display() { System.out.println("Parent"); }
}
class Child extends Parent {
  void display() { System.out.println("Child"); }
}
public class Test {
  public static void main(String[] args) {
    Child c = new Parent();
    c.display();
  }
}

AMethod display() is missing in Child class

BNo error, code runs fine

CClass Child cannot extend Parent

DCannot assign Parent object to Child reference

Step-by-Step Solution

Solution:

Step 1: Check object assignment compatibility
A child class reference cannot point to a parent class object because parent may lack child features.
Step 2: Identify the error line
Line Child c = new Parent(); causes compile error due to incompatible types.
Final Answer:
Cannot assign Parent object to Child reference -> Option D
Quick Check:
Child reference cannot hold Parent object [OK]

Quick Trick: Child reference cannot point to Parent object [OK]

Common Mistakes:

Thinking inheritance allows any assignment
Ignoring compile-time type checks
Assuming method presence fixes assignment error

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More Java Quizzes

Find the error in this Java code related to inheritance:

Step 1: Check object assignment compatibility

Step 2: Identify the error line

Final Answer:

Quick Check:

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