Total of 670 Questions.     




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1.   What is type casting? (Answered)
What is type casting? .
Posted On:Sat 20, March 2021 20:26:16 pm
2.   Where and how can you use a private constructor? (Answered)
Where and how can you use a private constructor? .
Posted On:Sat 20, March 2021 20:25:35 pm
3.   What is the difference between an instance variable and a static variable? (Answered)
What is the difference between an instance variable and a static variable? .
Posted On:Sat 20, March 2021 20:23:45 pm
4.   What are wrapper classes? (Answered)
What are wrapper classes? .
Posted On:Sat 20, March 2021 20:22:49 pm
5.   What is the main difference between shallow cloning and deep cloning of objects? (Answered)
What is the main difference between shallow cloning and deep cloning of objects? .
Posted On:Sat 20, March 2021 20:21:47 pm
6.   When do we use java serialization? (Answered)
When do we use java serialization? .
Posted On:Sat 20, March 2021 20:19:45 pm
7.   What is the main difference between a String and a StringBuffer class? (Answered)
What is the main difference between a String and a StringBuffer class? .
Posted On:Sat 20, March 2021 20:17:58 pm
8.   What is a list iterator? (Answered)
What is a list iterator? .
Posted On:Sat 20, March 2021 20:17:11 pm
9.   What is an array? (Answered)
What is an array? .
Posted On:Sat 20, March 2021 20:16:21 pm
10.   What is the Collections API? (Answered)
What is the Collections API? .
Posted On:Sat 20, March 2021 20:15:28 pm
11.   What must a class do to implement an interface? (Answered)
What must a class do to implement an interface? .
Posted On:Sat 20, March 2021 20:14:51 pm
12.   What is the Collection interface? (Answered)
What is the Collection interface? .
Posted On:Sat 20, March 2021 20:14:12 pm
13.   What are class variables (Answered)
What are class variables .
Posted On:Sat 20, March 2021 20:13:27 pm
14.   What is an abstract class? (Answered)
What is an abstract class? .
Posted On:Sat 20, March 2021 20:12:24 pm
15.   What are different types of access modifiers? (Answered)
What are different types of access modifiers? .
Posted On:Sat 20, March 2021 20:11:26 pm
16.   What is serialization? (Answered)
What is serialization? .
Posted On:Sat 20, March 2021 20:10:48 pm
17.   Define strings? (Answered)
Define strings? .
Posted On:Sat 20, March 2021 20:10:13 pm
18.   what is dot operator? (Answered)
what is dot operator? .
Posted On:Sat 20, March 2021 20:09:39 pm
19.   What is variables and their types? (Answered)
What is variables and their types? .
Posted On:Sat 20, March 2021 20:08:37 pm
20.   What is the Java Virtual Machine (JVM)? (Answered)
What is the Java Virtual Machine (JVM)? .
Posted On:Sat 20, March 2021 20:07:19 pm
21.   What is the Java API? (Answered)
What is the Java API? .
Posted On:Sat 20, March 2021 20:06:40 pm
22.   What are pass by reference and passby value? (Answered)
What are pass by reference and passby value? .
Posted On:Sat 20, March 2021 20:06:02 pm
23.   What are the main features of java? (Answered)
What are the main features of java? .
Posted On:Sat 20, March 2021 20:05:08 pm
24.   What is Java? (Answered)
What is Java? .
Posted On:Sat 20, March 2021 20:03:42 pm
25.   Describe the following path: C:\Windows\System\Kenya.doc. (Answered)
Describe the following path: C:\Windows\System\Kenya.doc. .
Posted On:Tue 16, March 2021 17:46:17 pm
26.   List four programs that always runs in the background when the computer is started. (Answered)
List four programs that always runs in the background when the computer is started. .
Posted On:Tue 16, March 2021 06:40:53 am
27.   Define the term installation. (Answered)
Define the term installation. .
Posted On:Tue 16, March 2021 06:40:04 am
28.   Give two reasons why one may restart a computer. (Answered)
Give two reasons why one may restart a computer. .
Posted On:Tue 16, March 2021 06:39:21 am
29.   Explain the following commands as used with operating systems: Rename file and sort file. (Answered)
Explain the following commands as used with operating systems: Rename file and sort file. .
Posted On:Tue 16, March 2021 06:38:02 am
30.   Give the importance of scandisk command. (Answered)
Give the importance of scandisk command. .
Posted On:Tue 16, March 2021 06:37:23 am
31.   Define the term scandisk (Answered)
Define the term scandisk .
Posted On:Tue 16, March 2021 06:36:54 am
32.   Explain how the operating system controls the Processor. (Answered)
Explain how the operating system controls the Processor. .
Posted On:Tue 16, March 2021 06:35:58 am
33.   Explain the difference in function between these keys: (i)caps lock key and shift key (ii)tab key and space bar key. (Answered)
Explain the difference in function between these keys: (i)caps lock key and shift key (ii)tab key and space bar key. .
Posted On:Tue 16, March 2021 06:34:20 am
34.   Explain how one can select a group of: i)Randomly placed files ii)Subsequent files: (Answered)
Explain how one can select a group of: i)Randomly placed files ii)Subsequent files: .
Posted On:Tue 16, March 2021 06:32:55 am
35.   Write down the procedure of recovering deleted files using an operating system. (Answered)
Write down the procedure of recovering deleted files using an operating system. .
Posted On:Tue 16, March 2021 06:31:35 am
36.   Give the function of a recycle bin. (Answered)
Give the function of a recycle bin. .
Posted On:Tue 16, March 2021 06:31:04 am
37.   Give any one similarity and one difference between menu-driven interface and graphical user interface. (Answered)
Give any one similarity and one difference between menu-driven interface and graphical user interface. .
Posted On:Tue 16, March 2021 06:30:32 am
38.   List four devices or resources controlled by operating system. (Answered)
List four devices or resources controlled by operating system. .
Posted On:Tue 16, March 2021 06:29:49 am
39.   Explain three file attributes. (Answered)
Explain three file attributes. .
Posted On:Tue 16, March 2021 06:29:18 am
40.   Define the word file attribute as used in operating system. (Answered)
Define the word file attribute as used in operating system. .
Posted On:Tue 16, March 2021 06:28:49 am
41.   State and explain two situation when a computer use will be required to format a disk. (Answered)
State and explain two situation when a computer use will be required to format a disk. .
Posted On:Tue 16, March 2021 06:28:15 am
42.   An intern in an IT company was asked to format a flash disk in windows XP. The trainee formatted the hard disk by a mistake. Explain the term formatting a disk. (Answered)
An intern in an IT company was asked to format a flash disk in windows XP. The trainee formatted the hard disk by a mistake. Explain the term formatting a disk. .
Posted On:Tue 16, March 2021 06:26:53 am
43.   State two reasons for partitioning a disk. (Answered)
State two reasons for partitioning a disk. .
Posted On:Tue 16, March 2021 06:26:14 am
44.   Define the term partitioning. (Answered)
Define the term partitioning. .
Posted On:Tue 16, March 2021 06:25:43 am
45.   The operating system is a suite of program that control and manage the operation of a computer and its peripheral without or with least intervention of the operator. With reference to the windows operating system, explain the following operations: (i)Disk defragmentation (ii)Back up. (Answered)
The operating system is a suite of program that control and manage the operation of a computer and its peripheral without or with least intervention of the operator. With reference to the windows operating system, explain the following operations: (i)Disk defragmentation (ii)Back up. .
Posted On:Tue 16, March 2021 06:25:04 am
46.   Using examples, explain the difference between application file and system based files. (Answered)
Using examples, explain the difference between application file and system based files. .
Posted On:Tue 16, March 2021 06:22:58 am
47.   Explain five functions of the operating system. (Answered)
Explain five functions of the operating system. .
Posted On:Tue 16, March 2021 06:21:42 am
48.   Define the term file as used in operating system. (Answered)
Define the term file as used in operating system. .
Posted On:Tue 16, March 2021 06:21:09 am
49.   Explain how the operating system does memory management. (Answered)
Explain how the operating system does memory management. .
Posted On:Tue 16, March 2021 06:19:57 am
50.   Distinguish between single user and multi user operating system. (Answered)
Distinguish between single user and multi user operating system. .
Posted On:Tue 16, March 2021 06:19:17 am
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