#163 – Iterating Using the for Loop
November 27, 2010 Leave a comment
The for statement allows executing a block of code a fixed number of times.
You could use a while loop to execute a block of code a fixed number of times:
int i = 1; int sum = 0; // Add up numbers 1-10 while (i <= 10) { sum += i; i++; }
You can do this a little more conveniently using a for loop.
int sum = 0; // Add up numbers 1-10 for (int i = 1; i <= 10; i++) sum += i;
The expression after the for keyword includes three clauses, separated by a semicolon:
- The initialization clause specifies variables to initialize before the loop starts executing
- The condition clause specifies the conditions under which the loop continues to execute
- The iteration clause specifies an operation to perform after executing the body of the loop