-Polymorphism is the mechanism by which an interface is used to access many implementations. -Encapsulation provides a protected linkage between code and its related data.
-Inheritance is the process by which an object acquire the traits of another.
Githiari answered the question on February 3, 2018 at 14:36
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Describe importance of computers in education systems.
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Describe importance of computers in education systems.
Date posted:
February 2, 2018
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Answers (1)
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Outline three advantages of using a mouse as an input device.
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Outline three advantages of using a mouse as an input device.
Date posted:
February 2, 2018
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State THREE examples of utility softwares
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State THREE examples of utility softwares.
Date posted:
January 28, 2018
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State what technology was used to process data during the following stages of computer generations. (a)1st Generation (b)2nd Generation (c)3rd Generation
(Solved)
State what technology was used to process data during the following stages of computer generations. (a)1st Generation (b)2nd Generation (c)3rd Generation
Date posted:
January 28, 2018
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Answers (1)
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We could rewrite the drawLogo method so that it has a single parameter: the drawing area.The rewritten method could use input dialogs to obtain...
(Solved)
We could rewrite the drawLogo method so that it has a single parameter: the drawing area.The rewritten method could use input dialogs to obtain the drawing position from the user.What is the drawback of this approach considering a program in java programming language?
Date posted:
January 26, 2018
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Answers (1)
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There are 2.54 cm in an inch.Declare a constant in java programming language named cmPerInch, with the correct value.Show how it might be used in...
(Solved)
There are 2.54 cm in an inch.Declare a constant in java programming language named cmPerInch, with the correct value.Show how it might be used in a calculation to convert inches to cm.
Date posted:
January 26, 2018
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Answers (1)
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Message dialogs can display a string.What do the following message dialogs display?
JOptionPane.showMessageDialog(null,
‘’5’’ +...
(Solved)
Message dialogs can display a string.What do the following message dialogs display?
JOptionPane.showMessageDialog(null,
‘’5’’ + ‘’5’’ + 5 + 5);
JOptionPane.showMessageDialog(null,
‘’5’’ + ‘’5’’ + (5+5));
Date posted:
January 26, 2018
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Answers (1)
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Which of the following variables are allowed in Java, and which have the correct style?Volume, Area, Length, 3 sides, Sidel, length, Mysalary, Your salary, Screensize
(Solved)
Which of the following variables are allowed in Java, and which have the correct style?
Volume
Area
Length
3sides
Sidel
length
Mysalary
Your salary
Screensize
Date posted:
January 26, 2018
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Answers (1)
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Write a program which draws a large ‘T’ shape on the screen.
(Solved)
Write a program which draws a large ‘T’ shape on the screen.
Date posted:
January 26, 2018
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Answers (1)
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Create a program in java and name it DrawCircle.When the single button is clicked, it should draw a circle of pixel diameter.
(Solved)
Create a program in java and name it DrawCircle.When the single button is clicked, it should draw a circle of pixel diameter.
Date posted:
January 26, 2018
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Answers (1)
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Define the term compiler as used in programming
(Solved)
Define the term compiler as used in programming
Date posted:
January 26, 2018
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Answers (1)
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Write a program in java language to illustrate reverse sort of an array.The program should sort them in natural, alphabetical order using the default version...
(Solved)
Write a program in java language to illustrate reverse sort of an array.The program should sort them in natural, alphabetical order using the default version of sort();
Date posted:
January 26, 2018
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Answers (1)
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State TWO main ways through which data is accessed in a storage media and give an example of a storage media in each case.
(Solved)
State TWO main ways through which data is accessed in a storage media and give an example of a storage media in each case.
Date posted:
January 26, 2018
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Answers (1)
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What is a repeater?
(Solved)
What is a repeater?
Date posted:
January 26, 2018
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Answers (1)
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Define the following terms (a)attenuation (b)bandwidth (c)multiplexing
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Define the following terms (a)attenuation (b)bandwidth (c)multiplexing
Date posted:
January 26, 2018
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Answers (1)
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Which device is used to rectify attenuation in a transmission medium?
(Solved)
Which device is used to rectify attenuation in a transmission medium?
Date posted:
January 26, 2018
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State and briefly explain modes of data communication
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The student should have understood computer networking and the modes of communications used.
Date posted:
January 26, 2018
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State and explain the types of computer networks
(Solved)
State and explain the types of computer networks.
Date posted:
January 26, 2018
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Answers (1)
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State FOUR purposes of computer networks
(Solved)
State FOUR purposes of computer networks.
Date posted:
January 26, 2018
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Answers (1)
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State THREE advantages of computer networks
(Solved)
State THREE advantages of computer networks.
Date posted:
January 26, 2018
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Answers (1)