8escs01 problem solving through programming unit-2: c programming basics

84
BRANCHING STATEMENTS – NESTED IF STATEMENT
Example:
#include
Output:
Value of a is 100 and b is 200 Exact value of a is : 100 Exact value of b is : 200

CONTROL STATEMENTS

85
BRANCHING STATEMENTS – SWITCH STATEMENT

• Switch statements is a multiway branching statements based on the value of an expression
• The control is transferred to one of the many possible points
• If no match is there, then the default block is executed
• Every case statements should be terminated with a break statements

Syntax:	Flow Diagram:
switch (expression) { case label1: statements; break; case label2: statements; break; default: statements; }

CONTROL STATEMENTS

Example: #include void main ()
{ char grade = 'B';
switch(grade)
{ case 'A' : printf("Excellent!\n" );
case 'B' : printf(“Good!\n" );
case 'C' : printf("Well done\n" );
case 'D' : printf("You passed\n" );
break; break; break; break;
case 'F' : printf("Better try again\n" ); break; default : printf("Invalid grade\n" );
}
printf("Your grade is %c\n", grade );
}
86
BRANCHING STATEMENTS – SWITCH STATEMENT
Output:
Good
Your grade is B

LOOPING STATEMENTS

CONTROL STATEMENTS

88
LOOPING STATEMENTS

• Loop control statements in C are used to perform looping operations until the given condition is true.
• Control comes out of the loop statements once condition becomes false.
• There are 3 types:
• for loop
• while loop
• do while loop
• break
• continue
• goto