Learn
Learn Java: Loops
Review
Nice work! Let’s iterate over what you’ve just learned about loops:
while
loops: These are useful to repeat a code block an unknown number of times until some condition is met. For example:
int wishes = 0; while (wishes < 3) { // code that will run wishes++; }
for
loops: These are ideal for when you are incrementing or decrementing with a counter variable. For example:
for (int i = 0; i < 5; i++) { // code that will run }
- For-each loops: These make it simple to do something with each item in a list. For example:
for (String inventoryItem : inventoryItems) { // do something with each inventoryItem }
Instructions
Feel free to play around with loops, arrays, and ArrayLists
in the code editor.