A for loop is used for iterating over a sequence (that is either a list, a tuple, a dictionary, a set, or a string). This is less like the for keyword in other programming languages, and works more like an iterator method as found in other object-orientated programming languages.

The while Loop With the while loop we can execute a set of statements as long as a condition is true.

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C# For Loop When you know exactly how many times you want to loop through a block of code, use the for loop instead of a while loop:

From the example above, you can read: Expression 1 sets a variable before the loop starts (let i = 0). Expression 2 defines the condition for the loop to run (i must be less than 5). Expression 3 increases a value (i++) each time the code block in the loop has been executed.

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You can loop through the list items by using a while loop. Use the len() function to determine the length of the list, then start at 0 and loop your way through the list items by referring to their indexes.

Java For Loop When you know exactly how many times you want to loop through a block of code, use the for loop instead of a while loop:

These conditions can be used in several ways, most commonly in "if statements" and loops. An "if statement" is written by using the if keyword.

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