INTRODUCTION TO CLASSES AND METHODS ONE LINER 02
1) What is a constructor?
Ans: A constructor is a special kind of method that determines how an object is initialized when created.
2) Which keyword is used to create an instance of a class?
Ans: new.
3) Which method is used to garbage collect an object?
Ans: finalize ().
4) Constructors can be overloaded like regular methods.
a)True
2) Which keyword is used to create an instance of a class?
Ans: new.
3) Which method is used to garbage collect an object?
Ans: finalize ().
4) Constructors can be overloaded like regular methods.
a)True
b)False
Ans: a.
5) What is casting?
Ans: Casting is bused to convert the value of one type to another.
6) Casting between primitive types allows conversion of one primitive type to another.
a)True
Ans: a.
5) What is casting?
Ans: Casting is bused to convert the value of one type to another.
6) Casting between primitive types allows conversion of one primitive type to another.
a)True
b)False
Ans: a.
7) Casting occurs commonly between numeric types.
a)True
Ans: a.
7) Casting occurs commonly between numeric types.
a)True
b)False
Ans: a.
8) Boolean values can be cast into any other primitive type.
a)True
Ans: a.
8) Boolean values can be cast into any other primitive type.
a)True
b)False
Ans: b.
9) Casting does not affect the original object or value.
a)True
Ans: b.
9) Casting does not affect the original object or value.
a)True
b)False
Ans: a.
10) Which cast must be used to convert a larger value into a smaller one?
Ans: Explicit cast.
Ans: a.
10) Which cast must be used to convert a larger value into a smaller one?
Ans: Explicit cast.
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