Java/Java Mcq Question Set 4 Sample Test,Sample questions

Question:
Which of the following is correct way of implementing an interface salary by class manager?

1.class manager imports salary {}

2.class manager extends salary {}

3.class manager implements salary {}

4.None

Posted Date:-2021-10-25 05:25:44


Question:
Which of the following is incorrect statement about packages?

1.Interfaces are specified public if they are to be accessed by any code in the program.

2.All variables in interface are implicitly final and static.

3.Interfaces specifies what class must do but not how it does.

4.All variables are static and methods are public if interface is defined pubic.

Posted Date:-2021-10-25 05:25:44


Question:
Which of the following package stores all the standard java classes?

1.java

2.lang

3.util

4.java.packages

Posted Date:-2021-10-25 05:25:44


Question:
Which of these access specifiers can be used for an interface?

1.private

2.Public

3.Protected

4.All of the above

Posted Date:-2021-10-25 05:25:44


Question:
Which of these can be used to fully abstract a class from its implementation?

1.Objects

2.Packages

3.Interfaces

4.None

Posted Date:-2021-10-25 05:25:44


Question:
Which of these class is related to all the exceptions that are explicitly thrown?

1.Exception

2.Error

3.Throw

4.Throwable

Posted Date:-2021-10-25 05:25:44


Question:
Which of these class is related to all the exceptions that can be caught by using catch?

1.Exception

2.Error

3.RuntimeExecption

4.All of the above

Posted Date:-2021-10-25 05:25:44


Question:
Which of these class is related to all the exceptions that cannot be caught?

1.RuntimeExecption

2.Exception

3.Error

4.All of the above

Posted Date:-2021-10-25 05:25:44


Question:
Which of these classes is not included in java.lang?

1.Integer

2.Array

3.Class

4.Byte

Posted Date:-2021-10-25 05:25:44


Question:
Which of these handles the exception when no catch is used?

1.Default handler

2.throw handler

3.Java run time system

4.finally

Posted Date:-2021-10-25 05:25:44


Question:
Which of these is a process of converting a simple data type into a class?

1.type casting

2.type wrapping

3.type conversion

4.None

Posted Date:-2021-10-25 05:25:44


Question:
Which of these is a super class of all exceptional type classes?

1.Cachable

2.String

3.RuntimeExceptions

4.Throwable

Posted Date:-2021-10-25 05:25:44


Question:
Which of these is a super class of wrappers Double & Integer?

1.Number

2.Float

3.Long

4.Digits

Posted Date:-2021-10-25 05:25:44


Question:
Which of these keywords is used by a class to use an interface defined previously?

1.Import

2.implements

3.Implements

4.import

Posted Date:-2021-10-25 05:25:44


Question:
Which of these keywords is used to by the calling function to guard against the exception that is thrown by called function?

1.throw

2.try

3.catch

4.throws

Posted Date:-2021-10-25 05:25:44


Question:
Which of these keywords is used to define interfaces in Java?

1.interface

2.intf

3.Interface

4.Intf

Posted Date:-2021-10-25 05:25:44


Question:
Which of these keywords is used to generate an exception explicitly?

1.finally

2.catch

3.throw

4.try

Posted Date:-2021-10-25 05:25:44


Question:
Which of these keywords is used to manually throw an exception?

1.catch

2.try

3.throw

4.finally

Posted Date:-2021-10-25 05:25:44


Question:
Which of these keywords must be used to handle the exception thrown by try block in some rational manner?

1.catch

2.throw

3.finally

4.try

Posted Date:-2021-10-25 05:25:44


Question:
Which of these operator is used to generate an instance of an exception than can be thrown by using throw?

1.thrown

2.new

3.malloc

4.alloc

Posted Date:-2021-10-25 05:25:44


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