java for循环

public class Sample {

    public static void main(String[] args) {
        for (int i = 1; i <= 10; i++) {
            System.out.print(i + " ");
        }
    }
}


OUTPUT:
1 2 3 4 5 6 7 8 9 10

 demo2

public class Sample {

    public static void main(String[] args) {
        for (int i = 1; i <= 10; i += 2) {
            System.out.print(i + " ");
        }
    }
}



OUTPUT:
1 3 5 7 9

demo3

public class Sample {

    public static void main(String[] args) {
        for (int i = 10; i >= 1; i--) {
            System.out.print(i + " ");
        }
    }
}



OUTPUT:
10 9 8 7 6 5 4 3 2 1