C#
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The for loop in C# allows iterating over arrays and sequential processing by executing statements within a code block as long as a condition remains true. The for loop syntax includes initialization, condition, and step components. For example, a for loop can initialize a counter variable, check if the counter is less than or equal to a maximum count, and increment the counter each iteration to print the values 1 through 4. All components of the for loop are optional, allowing an infinite loop with no initialization, condition, or step.
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The document provides an introduction to C# programming for beginners. It covers key topics like program structure, variables, data types, control statements, methods, classes, inheritance, polymorphism and more. Code examples are provided to demonstrate concepts like arrays, if/else statements, loops, parameter passing in methods, namespaces, classes and inheritance.Ad
C#
- 1. The for loop in C# is useful for iterating over arrays and for sequential processing. That is the statements within the code block of a for loop will execute a series of statements as long as a specific condition remains true. Syntax: for(initialization; condition; step) statement initialization : Initialize the value of variable. condition : Evaluate the condition step : Step taken for each execution of loop body The for loop initialize the value before the first step. Then checking the condition against the current value of variable and execute the loop statement and then perform the step taken for each execution of loop body. int count = 4; for (int i = 1; i < = count; i++) { MessageBox.Show("Current value of i is - " + i); } The output of the code as follows : Current value of i is - 1 Current value of i is - 2 Current value of i is - 3 Current value of i is - 4 The loop will execute four times because we set the condition i is less than or equal to count. for (int i = 1; i < = count; i++) initialization : int i = 1 Initialize the variable i as 1, that is when the loop starts the value of i is set as 1 condition : i < = count Set the condition i < =count , that is the loop will execute up to
- 2. when the value of i < = 4 (four times) step : i++ Set the step for each execution of loop block as i++ ( i = i +1) All of the expressions of the for loop statements are optional. The following statement is used to write an infinite loop. for (; ; ) { // statements } Here the loop will execute infinite times because there is no initialization , condition and steps. Download Source Code Print Source Code using System; using System.Windows.Forms; namespace WindowsApplication1 { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { int count = 4; for (int i = 1; i < = count; i++) { MessageBox.Show("Current value of i is - " + i); } } } }