class Main {
    public static void main(String[] args) {
        // FOR loop
        System.out.println("=== FOR LOOP ===");
        for (int i = 1; i <= 5; i++) {
            System.out.println(i);
        }
 
        // WHILE loop
        System.out.println("\n=== WHILE LOOP ===");
        int j = 1;
        while (j <= 5) {
            System.out.println(j);
            j++;
        }
 
        // DO WHILE loop
        System.out.println("\n=== DO WHILE LOOP ===");
        int k = 1;
        do {
            System.out.println(k);
            k++;
        } while (k <= 5);
    }
}

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