Java: Control Flow

What you will learn

Conditionals, loops, and the traditional Java for-loop syntax.

int score = 85;
if (score >= 90) {
    System.out.println("A");
} else if (score >= 80) {
    System.out.println("B");
} else {
    System.out.println("F");
}

Note else if is two words (not elif).

Traditional for loop

for (int i = 0; i < 5; i++) {
    System.out.println(i);
}

Parts: initializer (runs once), condition (checked before each iteration), update (runs after each body). All three are optional -- for (;;) is an infinite loop.

Enhanced for (for-each)

int[] numbers = {1, 2, 3};
for (int n : numbers) {
    System.out.println(n);
}

Quick check below!