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

Syntax:
Flow Diagram:
do { statement(s); }while( condition );

CONTROL STATEMENTS

void main ()
{
int a = 10;
do
{
printf("%d", a); a = a + 1;
} while( a < 20 );
}
LOOPING STATEMENTS – DO…WHILE LOOP
Example:
#include
Output:
10 11 12 13 14 15 16 17 18 19

CONTROL STATEMENTS

LOOPING STATEMENTS – BREAK LOOP

• The break statement has the following two usages:
• When the break statement is encountered inside a loop, the loop is immediately terminated and program control resumes at the next statement following the loop.
• It can be used to terminate a case in the switch statement

Syntax:	Flow Diagram:
break;

CONTROL STATEMENTS

void main ()
{
int a = 10; while( a < 20 )
{
printf("%d", a); a++;
if( a > 15)
{
break;
}
}
}
96
LOOPING STATEMENTS – BREAK LOOP
Example:
#include
Output:
10 11 12 13 14 15

CONTROL STATEMENTS

97
LOOPING STATEMENTS – CONTINUE LOOP

• The continue statement works somewhat like the break statement.
• Instead of forcing termination of loop, however, continue forces the next iteration of the loop to take place, skipping any code in between.

Syntax:	Flow Diagram:
continue;

CONTROL STATEMENTS

void main ()
{
int a = 10; while( a < 20 )
{
printf("%d", a); a++;
if( a > 15)
{
continue;
}
}
}
98
LOOPING STATEMENTS – CONTINUE LOOP
Example:
#include
Output:
10 11 12 13 14 16 17 18 19

CONTROL STATEMENTS

language provides an
unconditional jump from the goto to a labeled statement in the same function.
99
LOOPING STATEMENTS – GOTO LOOP

• A goto statement in C programming

Syntax:	Flow Diagram:
goto label; …. …. label: statement;

CONTROL STATEMENTS

void main()
{
int a = 10; LOOP: do
{
if( a == 15)
{
a = a + 1; goto LOOP;
}
printf(" %d", a); a++;
}while( a < 20 );
}
100
LOOPING STATEMENTS – GOTO LOOP
Example:
#include
Output:
10 11 12 13 14 16 17 18 19