1 Project 3 String Methods. Project 3: String Methods Write a program to do the following string manipulations: Prompt the user to enter a phrase and.

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Presentation transcript:

1 Project 3 String Methods

Project 3: String Methods Write a program to do the following string manipulations: Prompt the user to enter a phrase and read the phrase from the keyboard into variable stringA. Prompt the user to enter another phrase and read this phrase from the keyboard into variable stringB. You may assume that there are at least three characters in each string. Output the number of characters in each string to the screen. Concatenate the two phrases, separated by a space, and output the result to the screen. StringA followed by StringB, with a space between. Call this the composite string. 2

Project 3: String Methods Output the number of characters in the composite string to the keyboard. Should be the sum of the lengths of the two original strings + 1. Replace each of the vowels in the composite string with an asterisk (*) and output the modified string to the screen. Consider the letters A E I 0 and U (upper case and lower case) to be the only vowels. Determine and output the number of characters in the composite string prior to the first vowel. This needs the String method indexOf. See the last two slides of 3

444 Test Data Test your program using the following data: To be or not to be That is the question

555 Sample Run Your output should be similar in format to that shown in the sample run shown below.

666 Writing the Program Start with a stub Just output the initial message. Compile and test after each step. Always have a working program! Add code to get the inputs. Declare variables for the inputs. Instantiate a Scanner Output a promt and read the first phrase from the keyboard. Output a promt and read the second phrase from the keyboard. Temporarily output the strings received (So that you can verify that they were read correctly.)

Writing the Program Determine and output the length of each string. Declare a variable for the composite string. Create and output the composite string. Output the number of characters in the composite string. Replace each of the vowels in the composite string with an asterisk (*) and output the modified string to the screen. Determine and output the number of characters in the composite string prior to the first vowel. 7

Writing the Program At this point your program is complete. If your program compiles without errors and produces the expected output, go back and delete (or comment out) the temporary outputs. 8

999 Submission Put your Java source file into a folder and zip it. Submit your zipped Java source file via Canvas Assignments. Project is due by 11:59 PM Sunday, January 31 Sections 001 and 002 Monday, February 1 Sections 003 and 004

10 Ground Rules Do not share your code with other students Before or after submitting the project. OK to discuss the project. Do not copy any other student’s code. Or even look at it. Do not let anyone copy or examine your code.

Ground Rules Except for code posted on the class web site Do not copy code from the Internet or any other source. Do not ask for help on an Internet forum. Write your own code.