Inheritance in Object-Oriented Programming
For which reason might one deliberately choose not to use ‘super’ keyword whilst coding within subclass's methods?
In what scenario would compiling fail due to improper use of 'super' keyword within a Java program containing several levels of inheritance?
Given the block of code below, answer the following question:
java
class Shape {
// constructor not shown
public void draw() {
System.out.println("Drawing a shape");
}
}
class Circle extends Shape {
// constructor not shown
public void draw() {
System.out.println("Drawing a ci...
In a complex inheritance hierarchy where Class B extends Class A, and Class C extends B, which invocation within class C’s constructor will correctly call a non-default superclass constructor of A?
What does 'super()' do when it appears as the first statement in a subclass's constructor?
What is the difference between super() and super.method() in Java?
If a method of a superclass is overridden in the subclass, which method is called by the line "methodName();" in the subclass?
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What indicates the highest level of computational inefficiency when using the 'super' keyword within deeply nested inherited structures with complex algorithms?
In a Java program, the "super" keyword can be used to do which of the following?
Consider the code below. If we create an object of the Child class and call the printMessage() method on that object, what will happen?
java
class Parent {
void printMessage() {
System.out.println("Hello from Parent");
}
}
class Child extends Parent {
void printMessage() {
...