Reference for Processing version 1.2. If you have a previous version, use the reference included with your software. If you see any errors or have suggestions, please let us know. If you prefer a more technical reference, visit the Processing Javadoc.

Name

for
Examples
example pic
for (int i = 0; i < 40; i = i+1) {
  line(30, i, 80, i);
}
example pic
for (int i = 0; i < 80; i = i+5) {
  line(30, i, 80, i);
}
example pic
for (int i = 40; i < 80; i = i+5) {
  line(30, i, 80, i);
}
example pic
for (int i = 30; i < 80; i = i+5) {
  for (int j = 0; j < 80; j = j+5) {
    point(i, j);
  }
}
Description Controls a sequence of repetitions. A for structure has three parts: init, test, and update. Each part must be separated by a semi-colon ";". The loop continues until the test evaluates to false. When a for structure is executed, the following sequence of events occurs:
1. The init statement is executed
2. The test is evaluated to be true or false
3. If the test is true, jump to step 4. If the test is False, jump to step 6
4. Execute the statements within the block
5. Execute the update statement and jump to step 2
6. Exit the loop.
Syntax 
for (init; test; update) { 
  statements
}
Parameters
init statement executed once when beginning loop
test if the test evaluates to true, the statements execute
update executes at the end of each iteration
statements collection of statements executed each time through the loop
Usage Web & Application
Related while
Updated on June 14, 2010 12:05:29pm EDT

Creative Commons License