Loops – Example

    

//Print First 10 Natural No. using for()

    public class For_loop_Demo

        {

            public static void main(String args[])

                {

                    for(int i=1;i<=10;i++)

                        {

                            System.out.print(i+"  ");

                        }

                }

         }

---

    //Print First 10 Natural No. in reverse order using while()

    public class While_loop_Demo

        {

            public static void main(String args[])

                {

                    int i=11;

                    while(i-->1)

                        {

                            System.out.print(i+"  ");

                        }

                }

         }

---

    //Print First 20 even No using do-while()

    public class do_while_loop_Demo

        {

            public static void main(String args[])

                {

                    int i=2;

                    do

                        {

                            System.out.print(i+"  ");

                            i+=2;

                        }while(i<20)

                }

         }