// Helene Martin, CSE 142
// Demonstrates usage of for loops and nested for loops

public class LoopExamples {
   public static void main(String[] args) {
      squares();
      blastoff();
      square();
      mult();
   }
   
   public static void squares() {
      for (int i = 1;
         i <= 6;
      i++) {
         System.out.println(i + " squared = " + i * i);
      }
      /*
      System.out.println("2 squared = " + 2 * 2);
      System.out.println("3 squared = " + 3 * 3);
      System.out.println("4 squared = " + 4 * 4);
      System.out.println("5 squared = " + 5 * 5);
      System.out.println("6 squared = " + 6 * 6);
      */
   }
   
   // display the following text using a loop:
   // T-minus 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, blastoff!
   public static void blastoff() {
      System.out.print("T-minus ");
      for (int i = 10; i >= 1; i--) {
         System.out.print(i + ", ");
      }
      System.out.println("blastoff!");
   }
   
   /* display the following grid of stars using for loops:
   **********
   **********
   **********
   **********
   **********
   */
   public static void square() {
      for (int i = 1; i <= 5; i++) {
         // System.out.println("**********");
         // The following for loop and blank println
         // are equivalent to the statement above.
         for (int j = 1; j <= 10; j++) {
            System.out.print("*");
         }
         System.out.println();
      }
   }
   
   // display a multiplication table
   public static void mult() {
      for (int i = 1; i <= 5; i++) {
         for (int j = 1; j <= 10; j++) {
            System.out.print(i * j + "\t");
         }
         System.out.println();
      }
   }
}