What is do while and switch in C#?

What is do while and switch in C#?

The range checking can be handled in another do/while loop: do { x = Console. ReadLine(); if (x < 1 || x > 4) Console. WriteLine(“Must be between 1 and 4!”); } while (x < 1 || x > 4); By the way, cases and the default don’t need braces. If you prefer, you could instead write the error message in the default.

Is there a switch statement in C#?

In C#, Switch statement is a multiway branch statement. It provides an efficient way to transfer the execution to different parts of a code based on the value of the expression. The switch expression is of integer type such as int, char, byte, or short, or of an enumeration type, or of string type.

How do you exit a while loop in C#?

Use the break or return keyword to exit from a while loop on some condition, as shown below. Ensure that the conditional expression evaluates to false or exit from the while loop on some condition to avoid an infinite loop.

How do you start writing a while loop in C#?

C# – While Loop

1. Syntax. The syntax of a while loop in C# is − while(condition) { statement(s); } Here, statement(s) may be a single statement or a block of statements.
2. Flow Diagram. Here, key point of the while loop is that the loop might not ever run.
3. Example. Live Demo.

What are the different looping statements in C#?

Overview: the four different loops of the C# programming language

• The for loop, which counts from one value to another.
• The foreach loop, that easily iterates over all elements in a collection.
• The while loop, which goes on as long as some condition is true .
• And the do-while loop, which always executes at least once.

What are 3 types of loops in C#?

What are control statements in C#?

The control statements are used to control the flow of execution of the program. If you want to execute a specific block of instructions only when a certain condition is true, then control statements are useful. If you want to execute a block repeatedly, then loops are useful.

Are switch statements faster than if-else C#?

Switch is generally faster than a long list of ifs because the compiler can generate a jump table. The longer the list, the better a switch statement is over a series of if statements.

Can we use continue in switch?

We can not use a continue with the switch statement. The break statement terminates the whole loop early. The continue statement brings the next iteration early. It stops the execution of the loop.