Handout 6

Overview

• Questions from last time
• String tests
• Practice

String tests

• eq: string equality, are two strings the same?
• ne: string inequality, are two strings different?
• lt: alphabetic order, does one string preceed another alphabetically?
• gt: alphabetic order, does one string follow another alphabetically?

Practice in groups

• Write a program that prints out its command-line arguments, each on a separate line
• Write a program that adds together a set of numbers given on the command-line and prints out the result.
• Write a program that reads a bunch of lines in from a file and then:
  • prints them out in reverse order
  • prints out every other one
  • prints out every nth one, where n is given on the command-line
• Write a program that takes a list of words on the command-line and finds the first one alphabetically.
• Hard: write a program that takes a list of words on the command-line and sorts them alphabetically.