Programming  Java  Principles

1. In Java Inheritance

all fields of a class are private all fields of a class are protected a new class is derived from an existing class none of these above
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2. Primary purpose of inheritance is

code reuse overloading overriding ignoring irrelevant features from a software
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3. Which of the following modifiers can be used to disallow a method from being overridden?

final transient volatile none of these above
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4. In Java programming an object can take many forms. This feature called

Abstraction Polymorphism Encapsulation Inheritance
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5. A method cannot be overridden if it is qualified by which one of the following modifier?

friendly final static none of these above
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6. Multiple inheritance is possible in java by means of

package object interfaces class
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7. Method overloading

is a technique for implementing abstraction is a technique for implementing polymorphism is a technique for implementing encapsulation none of the above
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8. Which of the following keyword is used to invoke superclass of an overriden method?

native new super static
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9. Which method/methods cannot be overridden?

static final only a. both a and b
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10. Select the correct statement

Method overloading is called compile time polymorphism Method overriding is called runtime polymorphism Only b. is correct Both a. and b. are correct
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