Question

Discuss why it is necessary to use repetitive statement, and use segment codes to demonstrate your understanding of repetitive statement. Explain why you are choosing one of the following three statements in your code. a) for/foreach statement b) while/until statement c) do while/do until statement. Provide examples. You are welcome to do your own research or/and give feedback on others' comments.

Answer 1

Repetitive statements are an Integral part of any programming language, as they allow you to use a certain piece of code again and again , where multiple iterations are required to be performed for a fixed no. Of times.

Writing repetitive statements allows you to perform the function until it satisfies the requirements set by the user.

There are several repetitive statements such as:

1. For

2. While

3. Do-while

There use and how and why they are used are given below.

For ( I=0; I<500; I++)

{ a= a+6;

}

This statement will keep performing the specified statement inside the for until it satisfies the condition of being less than 500.

It is used when we know the specific amount of time a iteration or function has to be performed .

2.

While( a<5)

{ I++;}

The statement will continue to execute till the value is less than 5, and exit as soon as it doesn't satisfy the condition.

It will execute only of the condition is satisfied. If not, it exits .

3. .

Do {

A= A++;

}

While (I<4)

{ A++; }

In the do-while statements, the conditions will execute at least once as specified under the do and then after one execution it will check for conditions under the while statement and proceed accordingly.

The do statements will execute at least once , irrespective of further statement.

Hope that helps .

Regards