Question

1) The set of instructions that tells a computer what to do is called a ______________? 2) A program design tool used to list the attributes and methods of objects within an object-oriented program is called _______________. 3) Of the programming languages discussed in the textbook, which language is used to create web applications (called applets) that can be inserted into web pages? 4) If a programmer makes a spelling mistake or violates the rules of the programming language the program will not run. This is called a __________ error. 5) When a program runs but provides the wrong output, the programmer has committed a __________ error. 6) The software program that converts programming language code into binary code that can be read by the CPU is called a ________________. 7) With regards to computer programming, what is a variable? 8) Software companies often provide its finished programs to other companies for free with the understanding that the other companies will use the program and report back to the software company any errors found in the program. This is called ___________ testing. 9) The five steps performed by programmers to analyze, design, code, debug, and maintain a program is called the _________________________________________. 10) There are primarily two categories of programming languages: structured languages that were popular from the 1950’s through the 1980s, and ________________ languages that are most commonly used today.

Answer 1

Question 1

Solution:-

   The set of instructions that tells a computer what to do is called a Program.

Program is briefly explained below :

• A program is a set of instructions executed by the computer to perform a particular task.
• It is is written by a computer programmer by make use of any of the programming languages.
• It is also called as an application or software.
• A program will take the input,manipulate the data and produces the corresponding result.

Question 2

Solution:-

  A program design tool used to list the attributes and methods of objects within an object-oriented program is called Class Diagram.

A brief note on class diagram is given below :

• Class diagram is the UML diagram which can easily map the class with respect to attributes,methods and their relationship.
• It is a building block in the modeling of object oriented system.
• This structural diagram describes attributes and operations of a class in detail.
• It consists of collection of classes,interfaces constraints and associations.

Question 3

Solution:-

Java is the programming language which is used to create web applications (called applets) that can be inserted into web pages.

A note on Java is given below;

• Java is an Object Oriented Programming language.
• It is platform independent because the compiled code also known as the bytecode which can run on any operating system.
• An applet is a java program that can be inserted into web pages which provides interactive features to web applications.It is embedded in HTML pages and executed by the browsers.

Question 4

Solution:-

If a programmer makes a spelling mistake or violates the rules of the programming language the program will not run. This is called a Syntax error.

• Syntax error is an error which may occur in source code which is found on program execution time.
• Each programming languages have a set of rules which is need to follow while coding.If a source code violates the syntax ,then it will not compile until it is corrected.
• misspelled instructions or words,missing commas or quotation marks will result in syntax error.

Question 5

Solution:-

When a program runs but provides the wrong output, the programmer has committed a Logic error.

• Normally, a mistake in source code of a program will result in logic error which results in incorrect or wrong output.
• It is a runtime error which is mainly occur due to fault in logic.

Question 6

Solution:-

   The software program that converts programming language code into binary code that can be read by the CPU is called a compiler or Interpreter.

• The high level language resembles to english language can easily understand by the human which refers to the source code we have written whereas the low level language is written in 0's and 1's in binary and it is called machine code.
• Compiler or Interpreter can be used to convert a source code into binary code or machine code.
• Compiler scan the whole program and  translates the entire program into machine code.
• Interpreter translates one line or one statement at a time.

Question 7

Solution:-

Variable :-

• A variable is a name used to store informations or values in computer program.
• It act as a container to hold values or informations.
• Variables can be declared in different types like String,character,integer,float,boolean.

Question 8

Solution:-

Software companies often provide its finished programs to other companies for free with the understanding that the other companies will use the program and report back to the software company any errors found in the program. This is called Beta testing.

Question 9

Solution:-

   The five steps performed by programmers to analyze, design, code, debug, and maintain a program is called the Program Development Life Cycle.

Question 10

Solution:-

   There are primarily two categories of programming languages: structured languages that were popular from the 1950’s through the 1980s, and Object oriented languages that are most commonly used today.

• Object oriented languages which make use of concepts of "objects".These objects can have state or data and behaviour or code.