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In C#, a for
loop and a foreach
loop are used to iterate over a collection of items or a sequence of values. However, they differ in syntax and their intended use cases.
Here's a brief explanation of each:
for
loop: Afor
loop is a control structure that allows you to execute a block of code repeatedly, for a specified number of times. It is typically used when you know the exact number of times you want to loop through a sequence. The syntax for afor
loop is:
csharpfor (initialization; condition; increment/decrement)
{
// statements to be executed
}
foreach
loop: Aforeach
loop is used to iterate over a collection of items, such as an array or a list. It is typically used when you want to loop through a collection of items, without knowing the exact number of times the loop needs to run. The syntax for aforeach
loop is:
csharpforeach (var item in collection)
{
// statements to be executed
}
In summary, for
loops are used when you know the exact number of times you want to loop through a sequence, while foreach
loops are used when you want to loop through a collection of items without knowing the exact number of iterations needed.
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