C Interview Question | Set-4

26) When is the keyword "void" used in the workplace?

When you advertise jobs, you will decide whether that job will return the value or not. If that function cannot return the value, such as the function of the function to display certain results on the screen, then the "void" will be placed on the left side of the task header. When the return value is expected after the transaction, the data return value type is replaced by "void".

27) What are compiled statements?

Combined statements are made with two or more systematic statements made together. This usually happens when dealing with situations where a series of statements are made in which the TRUE or FALSE checks are made. Complex statements can also be made inside the loop. Twisted brackets {} are placed before and after consolidated statements

28) What does the significance of the algorithm in system C mean?

Before the program can be written, an algorithm must be performed first. The algorithm provides a step-by-step process on how to find a solution. It also serves as a blueprint for how the system will start and end, including what process and which computers are involved.

29) What is the benefit of the same members for each variety?

When storing multiple related data, it is a good idea to use the layout. This is because word ordering is composed using only one word followed by an item number. For example: to keep 10 test results for 1 student, one can use 10 different words (grade1, grade2, grade3 ... grade10). For the same members, only 1 word is used, some are obtained by reference name (grade [0], grade [1], grade [2] ... grade [9])

30) Write down a loop statement to show the following output: 
1 
12 
123 
1234 
12345

Answer: 

for (i=1; i<=5; i++) { 

 

for (j=1; j<=a; j++) 

 

printf("%d",j); 

 

printf("\n"); 

 

} 

31) What is wrong with this statement? scanf ("% d", quantity number);

The ampersand and symbol must be placed before the changing name of that number. Setting also means any total value entered by the user is stored in the "address" of the variable name. This is a common mistake for program planners, which often leads to logical errors.

32) How do you make random numbers in C?

Random numbers are made in C using the rand () command. Example: anyNum = rand () will generate any whole number from 0, assuming that anyNum is a whole variety.

33) What would be a problem if a proper job name such as tolower () was reported by a C combiner as unspecified?

A possible reason for this error is that the header file for this function is not displayed at the top of the program. Header files contain a description and specific type of functions and commands used in C. In the case of "tolower ()", the code "#include <ctype.h>" must be present at the beginning of the program.

34) What are the ideas and how do you include them in Schedule C?

Comments are a great way to put a comment or comment into a program. It can serve as a reminder of what the program is about, or an explanation of why a particular code or function was placed there in the first place. Comments start with / * and are owned by * / characters. Comments can be one line, or they can even extend several lines. It can be placed anywhere in the system.

35) What is error correction?

Debugging is the process of identifying errors within a system. During system integration, available errors will stop the system from working fully. In this state, the program developer will look at possible components where an error occurred. Debugging ensures the removal of errors, and plays an important role in ensuring that the expected system is met.

Also See:

• C Interview Question | Set-1
• C Interview Question | Set-2
  
• C Interview Question | Set-3