Question

1. Can you use a variable in your program without defining it in your program? Example to explain

2. What are some common error types in programming?

3. Write the pseudo code to define and initialize a variable to store the number of players in a Basketball team.

Answer 1

1. Can you use a variable in your program without defining it in your program? Example to explain

Explanation:- Variable cannot be used without its defination because if the varible is not defined ,
No memory is allocated to the variable and if we want to store some value to variable
then it is not possible.
  
Sometime confusion happen in C language when we write (int a;) This statements includes
declaration and defination both that is why it is used in the program.
  
The variable which is declared only but not defined is known by compiler only the extent
that it is of particular data type. But until it is not defined it is not used in program.
  
  
  
  

2. What are some common error types in programming?

Explanation:- There are basically 3 types of error in programming.
1. Syntax Error:- If you make any gramatical mistake while writing
Code then Syntax error occures.
eg. int a=10 (semicolon missing)
  
2. Logical Error: When error is in logic itself. The program is compile
successfully but not produced the desired result.
eg. If you want the sum of two numbers and write the statement like
s=a-b; This produces the difference of numbers not sum.

3. Runtime error:- This error encounters at run time.
eg. Divided by 0
int a=5;
int b=0;
int c=a/b;
The above code produce runtime error because The number cannot be
Divided by 0.
  
  
3. Write the pseudo code to define and initialize a variable to store the number of players in a Basketball team.

Explanation:- int num_of_player=0;
Defining the variable name num_of_player of type int and initialize with the value 0.
As the Basketball team approaches we increment the value of num_of_player by 1.