What is the use of foreach

The foreach loop in C# executes a block of code on each element in an array or a collection of items. When executing foreach loop it traversing items in a collection or an array . The foreach loop is useful for traversing each items in an array or a collection of items and displayed one by one.

  foreach(variable type in collection){
 
    // code block
 
  }

  variable type : The variable used for collect the item from Collection
 
  collection  : Collection of items

  string[] days = { "Sunday", "Monday", "TuesDay"};   foreach (string day in days)   {   MessageBox.Show("The day is : " + day); 
  }

The above C# example first declared a string array 'days' and initialize the days in a week to that array. In the foreach loop declare a string 'day' and pull out the values from the array one by one and displayed it.