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Which of the following is/are true for an abstract class?<br>1. A class is declared abstract by prefacing the definition with the word abstract.<br>2. A class is declare abstract by using the keyword implements.<br>3. It is a class that really isn’t supposed to ever be instantiated but instead serves as a base class.<br>4. Attempting to instantiate an abstract class results in an error.

Correct Answer: Only 2

Which of the following is/are true for an abstract class? i) Abstract classes in PHP are declared with the help of abstract keyword. ii) A class is declare abstract by using the keyword implements. iii) It is a class that really isn’t supposed to ever be instantiated but instead serves as a base class. iv) Attempting to instantiate an abstract class results in an error. 

interface Base{ boolean m1 (); byte m2(short s);}

which two code fragments will compile?
1. interface Base2 implements Base {}2. abstract class Class2 extends Base { public boolean m1(){ return true; }}3. abstract class Class2 implements Base {}4. abstract class Class2 implements Base { public boolean m1(){ return (7 > 4); }}5. abstract class Class2 implements Base { protected boolean m1(){ return (5 > 7) }}

You can invoke class constructors that don’t have any relation to the instantiated object by simply prefacing _constructor with the class name like.

Which of the following amounts to 'Dacoity'?
1. Five or more persons attempting to commit dacoity
2. Five or more persons actually committing dacoity
3. One attempting robbery and four others are there to aid
4. One attempting robbery and four others aiding the commission of robbery

Which of the following phrases (i),(ii), and (iii) given below each sentenceshould replace the phrase printed in boldletters to make the sentence grammaticallycorrect? Choose the best option among thefive given alternatives that reflect the correctuse of phrase in the context of thegrammatically correct sentence. If thesentence is correct as it is, mark (E) i.e., "Nocorrection required" as the answer. Despite the abuse and insults that werehurled at him, he really sticks on his gunsand showed the protesters how to becalm.
i. he really stuck onto his guns and showedthe protesters
ii. he really stuck to his guns and showed theprotesters
iii. he really is sticking his guns onto theprotesters

Choose the correct statement.
I.   The scope of a macro definition need not be the entire program.
II.  The scope of a macro definition extends from the point of definition to the end of the file.
III. New line is a macro definition delimiter.
IV.  A macro definition may go beyond a line.

What is the keyword used to declare a class that cannot be instantiated and can only be extended?

Which two of the following are legal declarations for abstract classes and interfaces?
1. final abstract class Test {}
2. public static interface Test {}
3. final public class Test {}
4. protected abstract class Test {}
5. protected interface Test {}
6. abstract public class Test {}

A Muslim male is prohibited from marrying the following relations:
1. Mother, Grand mother (how high so ever)
2. Daughter, Grand daughter (how low so ever)
3. Aunt, great aunt (how high so ever, whether paternal or maternal)
4. Niece, Grand niece (how low so ever)

Which two classes use the Shape class correctly?
A. public class Circle implements Shape { private int radius; }B. public abstract class Circle extends Shape { private int radius; }C. public class Circle extends Shape { private int radius; public void draw(); }D. public abstract class Circle implements Shape { private int radius; public void draw(); }E. public class Circle extends Shape { private int radius; public void draw() { /* code here */ } }F. public abstract class Circle implements Shape { private int radius; public void draw() { /* code here */ } }