Question

when creating computer programs to solve problems, there are three types of repetition that you can use. Describe the three types of loop and provide a pseudocode example of each

Answer 1

The three types of loops are for loop, while loop, do while loop.

For Loop: This is used when a set of statements are to be executed a specific number of times.This is an entry controlled loop meaning looo terminating condition is checked in the beginning of the loop

Structure of for loop:

for( initialisation ; test condition : update statement )

{

}

Psuedo Code:

for( i = 0 ; i < 5 : i++ )

{

Print " i will be printed 5 times "

}

While Loop: While loop is used when the number of iterations is not known before hand because this is an entry controlled loop.

Structure of loop:

While ( condition )

{

}

Psuedo Code:

i= 1

While ( i < 5)

{

Print " i am a while loop "

}

Do While loop: Do while loop is used when a set of statements need to be executed atleast once before checking the loop terminating condition

Loop Structure:

do

{

} while ( condition ) ;

psuedo Code:

i= 0

do

{

Print " i am a do while loop "

} while ( i < 5 );