Welcome to our lesson on Java's for
loop. We use loops to repeat some action multiple times without the need to write the code for every iteration. A for
loop can be likened to a set task — say, visiting each planet in our solar system one by one. By the end of this journey, you will understand and be able to use the basic for
loop and the enhanced for
loop in Java.
Imagine lining up your favorite planet toys in order. You take one, put it in line, and repeat until you run out of toys. This is precisely how the basic for
loop works in Java!
Here's the syntax:
This loop does the following:
- First, we do the
initialization
- Then, while the
condition
is true, we keep executing thetask
inside the loop body - After each iteration, we execute
post-iteration actions
that change the state in some way
Now, let's demonstrate this with code that prints numbers 1 through 5:
