Lab Assignment 6
CS201, Spring 2004

1. Number of terms to get Pi (5pt). Complete the program

2. Distance (5pt). The distance between two points (x1,y1) and (x2,y2) can be calculated as sqrt( (x1-x2)*(x1-x2) + (y1-y2)*(y1-y2) ). Write a method distance which take four parameters x1, y1, x2, y2, and returns the distance between the two points (x1,y1) and (x2,y2). Write a program to test your method.

3. Reverse a five digit number. Write a method reverse which takes a 5-digit integer as parameter, and returns an integer which is the original integer with the digits in reversed order. For example, reverse(12343) should return 34321. Write a Java program to test your method. [Hint: first seperate the integer into digits like we did in, then re-assemble the digits as digit5*10000+digit4*1000+digit3*100+digit2*10+digit1.]