What is the advantage of an array over individual variables?

C Programming Language > Array in C Language > Single Dimensional Array

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Answer:

When storing multiple related data, it is a good idea to use arrays. This is because arrays are named using only 1 word followed by an element number. For example: to store the 10 test results of 1 student, one can use 10 different variable names (grade1, grade2, grade3

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441. Write a loop statement that will show the following output:112123123412345

Answer:

 
for (a=1; a<=5; i++) {
for (b=1; b<=a; b++)
printf("%d",b);
printf("");
}

# Tutorial: for Loop in C

Question: Loop control in C Language Short

442. What is wrong in this statement? scanf("%d",whatnumber);

Answer: An ampersand & symbol must be placed before the variable name whatnumber. Placing & means whatever integer value is entered by the user is stored at the "address" of the variable name. This is a common mistake for programmers, often leading to logical errors.

# Tutorial: Basic Structure of C Programming

Question: Overview of C Language Short

443. How do you generate random numbers in C?

Answer: Random numbers are generated in C using the rand() command. For example: anyNum = rand() will generate any integer number beginning from 0, assuming that anyNum is a variable of type integer.

# Tutorial: Function in C

Question: Function in C Language Short

444. What could possibly be the problem if a valid function name such as tolower() is being reported by the C compiler as undefined?

Answer: The most probable reason behind this error is that the header file for that function was not indicated at the top of the program. Header files contain the definition and prototype for functions and commands used in a C program. In the case of "tolower()", the code "#include " must be present at the beginning of the program.

# Tutorial: About Java Tutorial

Question: Function in C Language Short

445. What are comments and how do you insert it in a C program?

Answer: Comments are a great way to put some remarks or description in a program. It can serves as a reminder on what the program is all about, or a description on why a certain code or function was placed there in the first place. Comments begin with /* and ended by */ characters. Comments can be a single line, or can even span several lines. It can be placed anywhere in the program.

# Tutorial: Basic Structure of C Programming

Question: Overview of C Language Short

446. What does the && operator do in a program code?

Answer: The && is also referred to as AND operator. When using this operator, all conditions specified must be TRUE before the next action can be performed. If you have 10 conditions and all but 1 fails to evaluate as TRUE, the entire condition statement is already evaluated as FALSE

# Tutorial: Bit-wise Operators in C

Question: Operators and Enums in C Language Short

447. What are the different types of control structures in programming?

Answer: There are 3 main control structures in programming: Sequence, Selection and Repetition. Sequential control follows a top to bottom flow in executing a program, such that step 1 is first perform, followed by step 2, all the way until the last step is performed. Selection deals with conditional statements, which mean codes are executed depending on the evaluation of conditions as being TRUE or FALSE. This also means that not all codes may be executed, and there are alternative flows within. Repetitions are also known as loop structures, and will repeat one or two program statements set by a counter.

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Question: Control Flow in C Programming Short

448. What is || operator and how does it function in a program?

Answer: The || is also known as the OR operator in C programming. When using || to evaluate logical conditions, any condition that evaluates to TRUE will render the entire condition statement as TRUE.

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Question: Operators and Enums in C Language Short

449. Describe the order of precedence with regards to operators in C.

Answer: Order of precedence determines which operation must first take place in an operation statement or conditional statement. On the top most level of precedence are the unary operators !, +,

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450. What is wrong with this statement? myName = "Nurujjaman";

Answer: You cannot use the = sign to assign values to a string variable. Instead, use the strcpy function. The correct statement would be: strcpy(myName, "Nurujjaman");

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Question: String in C Language Short

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