What is a nested loop in C#?

Nested loops are those loops that are present inside another loop. In C#, nesting of for, while, and do-while loops are allowed and you can also put any nested loop inside any other type of loop like in a for loop you are allowed to put nested if loop.

What is a nested loop example?

If a loop exists inside the body of another loop, it’s called a nested loop. Here’s an example of the nested for loop. // outer loop for (int i = 1; i <= 5; ++i) { // codes // inner loop for(int j = 1; j <=2; ++j) { // codes } .. } Here, we are using a for loop inside another for loop.

When should I use nested loops?

Nested loops are extraordinarily useful when you have two different arrays that need to be looped through the same function, looping different arrays into properties of various objects, when you need a “2D” array (x and y-axis), and the list goes on.

What is nesting in loop?

A nested loop has one loop inside of another. These are typically used for working with two dimensions such as printing stars in rows and columns as shown below. When a loop is nested inside another loop, the inner loop runs many times inside the outer loop.

How do nested loops work in C?

Initially, Nested for loop evaluates outer for loop test expression and evaluates only once. If the condition is true, the flow of control jumps to the inner for loop. Then, the loop evaluates the condition of the inner loop. when the condition is true, it executes codes of inside the inner for loop.

How do you write a nested loop?

How to write it:

  1. First, Write an outer for loop that will iterate the first list like [for i in first]
  2. Next, Write an inner loop that will iterate the second list after the outer loop like [for i in first for j in second]

Why are nested for loops bad?

Nested loops increase cyclomatic complexity (see here), which decreases the maintainability of a program, according to some people.

What are some advantages of using nested loops in a program?

A nested loop is a loop nut it has a loop inside another loop. simply a loop inside other loop is called as nested loop. -> It is useful when we are dealing with more number of iterations. -> memory size usage will be reduced.

How many nested loops is too many?

Microsoft BASIC had a nesting limit of 8. @Davislor: The error message refers to the stack size in the compiler, which is also a program, and which is recursively processing the nested-looped construct.

Can you nest while loops?

A nested while loop is a while statement inside another while statement. In a nested while loop, one iteration of the outer loop is first executed, after which the inner loop is executed. The execution of the inner loop continues till the condition described in the inner loop is satisfied.