Homework 1 -- Warmup
CSPP 51036
due Oct 15th at 11:59pm.


Submission instructions
 -Crate a project in eclipse with one driver [a .java file with a main method] for each problem. See video entitled submitProjects2012 for instructions on how to name your project, tar it, and submit it. Be sure to read chapters 1-3 in Horstmann.

  1. ReverseEcho.java
  2. Summation.java
  3. CharCount.java
  4. UpperCase.java
  5. Adder.java
  6. Reorder.java

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1. ReverseEcho.java: (10 points) Write an application that reverses the order of words in a string. You do not have to preserve multiple white-spaces between words. 

   Example:
    >> Please input a sentence:
    You type: Hello my name is Adam
    >> Adam is name my Hello

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2. Summation.java: (10 points) Write an application that sums all values from some
   user-specified min inclusive to some user-specified max inclusive.

   Example:

    >> What is your min value?
    You type: 2
    >> What is your max value?
    You type: 5
    >>The sum is: 14

   Error Handling:
    Must elegantly handle the following situations:
     - maxval is < minval
     - non-integer input
 

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3. CharCount.java: (20 points) Write a rogram that counts all occurences of a user-specified character within
   a file.

   Example:
    >>Please type the full path to you file
    You type: c:\dev\myFile.txt [myFile.txt contains "This is my sentence and I'm sticking to it."]
    >>What letter are you searching for?
    You type: i
    >>6 occurences of either 'I' or 'i' found.

   Error Handling:
     single character is not the input

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4. Uppercase.java: (20 points) Write a program that converts to uppercase the
   first character following any period in a file. 

    Example:

    >> What is the path to your file?
    You type: c:\dev\mydoc.txt 
    [mydoc.txt contains: the big. red fox jumped. over the lazy. dog.]
    >> the big. Red fox jumped. Over the lazy. Dog.

   Error Handling:
    Can assume input is valid
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5. Adder.java: (20 points) Write a program that accepts the following commands:
   The program must run a continuous loop and not shut down after
   each operation -- that is, continously asks for input unless "exit"
   is typed. Allow user to input two operands seperated by one operator. Allow +, -, *, /, %. 
  

    Example:
    >> What is your operation?
    You type: 4 + 5
    >> 4 + 5 is 9 ; What is your operation?
    You type: 4 - 3
    >> 4 - 3 is 1 ; What is your operation?
    You type: 17 % 4
    >> 17 % 4 is 1 ; What is your operation?
    You type: exit
    >>Thank you.


   Handle gracefully as many incorrect inputs as you can. For example:
         
    you type: 3 $ 6
                         error: No such operator '$'
    
    you type: 3 + 2 + 1
                         error: must supply only two operands
    
    you type: a + 2
                         error: symbol 'a' not a valid integer 
-------------------

6. Reorder.java: (20 points) Write a program that reorders an integer array nValues according
   to a vector of indices nOrders. 
   

Example:
    >>What is your array and reorder sequence
    You type: 0 4 -1 1000 & 3 0 1 2
    >>Your array is now {1000, 0, 4, -1}