Work Sheet No.1

1. Write a Java Program to Calculate the value of Pi from the infinite Series Pi = 4 - 4/3 +4/5-4/7+4/9-4/11....
2. Write a Java Program to print

   *
   **
   ***
   ****
   ****
   

3. What does the following Java Program segment do?

   for (i=1;i<=5; i++) {
   
   for (j=1;j<=3; j++) {
   
   for(k=1;k<=4;k++) 
    System.out.print('*');
   System.out.println();
   }
   System.out.println();