for loop C++

The for loop in C++ is used to repeatedly execute a block of code for a specific number of times. It has three components: initialization, condition, and increment/decrement.

Here is the syntax of a for loop in C++:

for (initialization; condition; increment/decrement) { // code block to be executed }

  1. Initialization: This is the first step in a for loop and is executed only once at the beginning. It is used to initialize the loop control variable. The loop control variable is typically an integer that keeps track of the current iteration. For example, you can initialize it as follows:

int i = 0;

  1. Condition: This is the second step in a for loop and is evaluated before each iteration. If the condition is true, the code block inside the loop will be executed. If the condition is false, the loop will terminate. The condition is typically written using a relational or logical operator. For example, you can set the condition as follows:

i < 10;

  1. Increment/Decrement: This is the third step in a for loop and is executed after each iteration. It is used to update the loop control variable so that the loop can eventually terminate. You can increment or decrement the loop control variable using the ++ or -- operators, respectively. For example, you can increment the loop control variable as follows:

i++;

The code block inside the for loop is executed if the condition is true. Once the code block is executed, the increment/decrement step is executed, and then the condition is checked again. This process continues until the condition becomes false.

Note: It's important to ensure that the loop control variable is updated correctly in the increment/decrement step to prevent infinite loops.

That's the explanation of each step in a for loop in C++.