PCS1-Ch-3B-Basic-Loops-HW CSCI 1320 Initials P a g e 1

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1 PCS1-Ch-3B-Basic-Loops-HW CSCI 1320 Initials P a g e 1 If this lab is an Individual assignment, you must do all coded programs on your own. You may ask others for help on the language syntax, but you must organize and present your own logical solution to the problem. No lab is complete until the student submits the signed pledge form associated with that lab. I realize that no coded programs will be graded until I turn in the sign & pledge form associated with that program; any late penalties will continue to compound until the pledge form is submitted. If this lab is a team assignment, both team members may share logic as they program side by side on their own computers. Each person must type all of his/her own code as part of the learning process. Team assignments are never to be You do this portion and I ll do that portion or You do this lab and I ll do the next lab. Some of the lab assignments will have short answer questions. These short answer questions will be spot checked and graded for completion, but not checked for accuracy. Once these labs are graded and returned, I encourage you to compare answers with another class member who has also had the lab graded and returned. I/We realize that the penalty for turning in work that is not my own, or assisting others in doing so, can range from an "F" in the class to dismissal from Trinity University. I realize that it is a violation of academic integrity to share any portion of this lab with any students (outside my 1320 team)! Print Name Time Required =. Hrs. Signature _ (pledged) Print Name Time Required =. Hrs. Signature _ (pledged) Print Name Time Required =. Hrs. Signature _ (pledged) Initial/Pledge} I have completed Loop 1 Square; it works correctly! Initial/Pledge} I have completed Loop 2 Square; it works correctly! Initial/Pledge} I have completed Loop 3 Square; it works correctly! Initial/Pledge} I have completed Loop 4 Square; it works correctly! Initial/Pledge} I have completed Loop 5 Square; it works correctly! Initial/Pledge} I have completed Loop 6 Square; it works correctly! Initial/Pledge} I have completed Loop 7 Square; it works correctly! Initial/Pledge} I have completed Loop 8 Square; it works correctly! Initial/Pledge} I have completed Loop 9 Square; it works correctly! Initial/Pledge} I have completed Loop 10 Square; it works correctly! Initial/Pledge} I have completed Loop 11 Square; it works correctly! Initial/Pledge} I have completed Loop 12 Square; it works correctly! Initial/Pledge} I have completed Loop 13 Square; it works correctly! Initial/Pledge} I have completed Loop 14 Square; it works correctly! Initial/Pledge} I have completed EXTRA CREDIT (1 Point) Loop 15 Square; it works correctly!

2 PCS1-Ch-3B-Basic-Loops-HW CSCI 1320 Initials P a g e 2 Chapter 4-B Homework Loops Individual/Team Assignment Questions 8 Points Script 28 Points 5/5 Extra Credit Short Answer Questions Electronic Solutions Of Short Answer Questions Will Not Be Accepted. Print A Copy Of Short Answer Question & Write Answers On Printed Copy 1] Write the line of scala code to create a string variable, called Name; initialize it with Dr. Tom Hicks 2] Write the line of scala code to display the number of characters currently in string Name in the following format: # characters in Name = 13 3] Write the line of scala code to fill an integer variable, called StrLen, and fill it with the number of characters currently in string Name 4] Write the line of scala code to display the the string of characters currently in string Name in capital form using this format: Name = DR. TOM HICKS 5] Write the line of scala code to fill a string variable, called UpperName, and fill it with the number of characters currently in string Name in all capital form. 6] Write the line of scala code to display the the string of characters currently in string Name in non-capital form using this format: Name = dr. tom hicks 7] Write the line of scala code to fill a string variable, called LowerName, and fill it with the number of characters currently in string Name in all non-cap form. 8] Write the line of scala code to display the first character of the string currently in Name in the following format: D 9] Write the line of scala code to display the first three characters of the string currently in Name in the following format: Dr. 10] Write the line of scala code to display the last character of the string currently in Name in the following format: s 11] Write the line of scala code to display the fifth character of the string currently in Name in the following format: T 12] Write the line of scala code to display the sixth character of the string currently in Name in the following format: o 13] Write the line of scala code to create a integer variable, called No; initialize it with 127

3 PCS1-Ch-3B-Basic-Loops-HW CSCI 1320 Initials P a g e 3 14] Write the line of scala short-cut numeric assignment which would be equivalent to No = No ] Write the line of scala short-cut numeric assignment which would be equivalent to No = No ] Write the line of scala short-cut numeric assignment which would be equivalent to No = No ] Write the line of scala short-cut numeric assignment which would be equivalent to No = No ] Write the line of scala short-cut numeric assignment which would be equivalent to No = No * 2 19] Write the line of scala short-cut numeric assignment which would be equivalent to No = No * -1 20] Write the line of scala short-cut numeric assignment which would be equivalent to No = No / 2 21] Write the line of scala short-cut numeric assignment which would be equivalent to No = No /14 22] Write the line of scala short-cut numeric assignment which would be equivalent to No = No % 5 23] According to the slides, the While Loop is a a) Pre-test Loop b) Post-test Loop c) Fixed Repetition Loop 24] According to the slides, the For Loop is a a) Pre-test Loop b) Post-test Loop c) Fixed Repetition Loop 25] According to the slides, the Do While Loop is a a) Pre-test Loop b) Post-test Loop c) Fixed Repetition Loop 26] According to the slides, we should generally use a While Loop when a) we know exactly how many times we wish to do something b) we don t know how many times we wish to do something but we want to do it at least once c) we don t know how many times we wish to do something and we are not sure we want to do it even once 27] According to the slides, we should generally use a For Loop when a) we know exactly how many times we wish to do something b) we don t know how many times we wish to do something but we want to do it at least once c) we don t know how many times we wish to do something and we are not sure we want to do it even once 28] According to the slides, we should generally use a Do While Loop when a) we know exactly how many times we wish to do something b) we don t know how many times we wish to do something but we want to do it at least once c) we don t know how many times we wish to do something and we are not sure we want to do it even once 29-55] Assume that the commands below are executed in the Scala interpreter. Record only the output from the print statements (if any) in the space to the right. 29] Count = 1 while (Count <= 8) Count = Count + 1 }

4 PCS1-Ch-3B-Basic-Loops-HW CSCI 1320 Initials P a g e 4 30] Count = 1 while (Count <= 8) Count += 2 } 31] Count = 1 while (Count <= 15) print ((Count+1) + " ") Count += 3 } 32] Count = 17 while (Count >= 2) if (Count % 3 == 0) Count = Count - Count % 3-1 else Count = Count - 2 } 33] println( 'A'.toInt ) 34] println( 'B'.toInt ) 35] println( 'a'.toint ) 36] println( ' '.toint ) 37] println( 65.toChar ) 38] println( 66.toChar ) 39] println( 97.toChar ) 40] println("*" + 32.toChar + "*" ) 41] Count = 1 while (Count <= 8 ) var Ch = (Count + 64).toChar print (Ch) Count = Count + 1 } 42] Count = 65 while (Count <= 80 )

5 PCS1-Ch-3B-Basic-Loops-HW CSCI 1320 Initials P a g e 5 print (Count.toChar+ " ") Count = Count + 4 } 43] Count = 7 do Count = Count + 4 } while (Count <= 21) 44] Count = 10 do Count -= 1 } while (Count >= 1) 45] Count = 10 do Count += 1 Count -= 4 } while (Count >= 1) 46] for (Count <- 1 until 6) 47] for (Count <- 1 to 6) 48] for (Count <- 6 to 1 by -1) 49] for (Count <- 6 to 1 by -2) 50] for (Count <- 7 to -9 by -3) } 51] var Country = "United States" println( Country.substring(0,1) )

6 PCS1-Ch-3B-Basic-Loops-HW CSCI 1320 Initials P a g e 6 52] var Country = "United States" println( Country.substring(1,3) ) 53] var Country = "United States" println( Country.substring (7, 13) ) 54] var Phrase = "To Err Is Human, To Forgive Devine" for (Count <- 0 until Phrase.length) print (Phrase.substring(Count, Count+1)) } 55] var Phrase = "To Err Is Human, To Forgive Devine" for (Count <- 0 until Phrase.length by 7) print (Phrase.substring(Count, Count+1) + " ") } 56] printf ("*%d*",1540) 57] printf ("*%6d*",1540) 58] printf ("*%2d*",1540) 59] printf ("*%4d-%4d*",1540,32) 60] printf("*%d + %d = %d*", 4, 3, 4+3) 61] printf ("*%2d*",123456) 62] printf ("*%f*", ) _* 1_ 63] printf ("*%9.4f*", ) 64] printf ("*%9.2f*", ) 65] printf ("*%3.2f*", )

7 PCS1-Ch-3B-Basic-Loops-HW CSCI 1320 Initials P a g e 7 66] printf ("*%.2f*", ) 67] var st = "TEXAS" printf(st(1) + "-" + st(3)) 68] var st = "TEXAS" printf(st(0) + "-" + st(2) + "-" + st(4) ) Script TomH-4B.scala 28 Points} 1] Write a script called TomH-4B.scala Use your First Name and the initial of your Last Name. Paste the following block of code (Green) into your script. 2] Complete Loops Loop 15 is extra credit. Extra Credit (5/5) only applicable if turned in on time. 3] At the end of this assignment sheet, you will see the output that you should get. Make sure that yours matches the example output. 4] Once you have all of the problems completed correctly, print & attach your script. 5] Once you have all of the problems completed correctly, print & attach your script output. scala TomH-.scala > TomH-4B-1.txt //==========================================================================// //==??????????-HW-4B-Loops (28 Points) ==// //==========================================================================// //== ==// //== Problem: Practice writing loops which produce the desired output. ==// //== ==// //== Written By:???????????????? Date:??/??/???? ==// //==========================================================================// //** WHILE LOOP PRACTICE ** //** Write The Scala Code For The Loops Below ** println("== Loop 1 ==") println("== While loop --> display first 20 numbers ==") println("== --> } Blank space between ==") println("== Loop 2 ==") println("== While loop --> display first 8 numbers ==") println("== --> 12, 16, 20, 24...} one to a line ==")

8 PCS1-Ch-3B-Basic-Loops-HW CSCI 1320 Initials P a g e println("== Loop 3 ==") println("== While loop --> display first 9 numbers ==") println("== --> 96, 92, 88, 84,...} one to a line ==") println("== Loop 4 ==") println("== While loop --> display first 30 numbers ==") println("== --> 47, 42, 37,...} eight to a line ==") println("== --> in a 5 character field ==") //** DO WHILE LOOP PRACTICE ** println("== Loop 5 ==") println("== Do While loop --> display first 20 numbers ==") println("== --> } Blank space between ==")

9 PCS1-Ch-3B-Basic-Loops-HW CSCI 1320 Initials P a g e 9 println("== Loop 6 ==") println("== Do While loop --> display first 8 numbers ==") println("== --> 12, 16, 20, 24...} one to a line ==") println("== Loop 7 ==") println("== Do While loop --> display first 9 numbers ==") println("== --> 96, 92, 88, 84,...} one to a line ==") println("== Loop 8 ==") println("== Do While loop --> display first 30 numbers ==") println("== --> 47, 42, 37,...} eight to a line ==") println("== --> in a 5 character field ==") //** FOR LOOP PRACTICE ** println("== Loop 9 ==")

10 PCS1-Ch-3B-Basic-Loops-HW CSCI 1320 Initials P a g e 10 println("== For Loop --> display first 20 numbers ==") println("== --> } Blank space between ==") println("== Loop 10 ==") println("== For Loop --> display first 8 numbers ==") println("== --> 12, 16, 20, 24...} one to a line ==") println("== Loop 11 ==") println("== For Loop --> display first 9 numbers ==") println("== --> 96, 92, 88, 84,...} one to a line ==") println("== Loop 12 ==") println("== For Loop --> display first 30 numbers ==") println("== --> 47, 42, 37,...} eight to a line ==") println("== --> in a 5 character field ==")

11 PCS1-Ch-3B-Basic-Loops-HW CSCI 1320 Initials P a g e 11 //** You Choose The Loop ** println("== Loop 13 ==") println("== Fill variable State with North Carolina ==") println("== --> Display the characters, in string State, ==") println("== --> in order - one character to a line ==") println("== --> N --> o --> r etc. ==") println("== --> Solution must be usable for any State. ==") N o r t h C a r o l i n a println("== Loop 14 ==") println("== Fill variable State with North Carolina ==") println("== --> Display the characters, in string State, ==") println("== --> in reverse order -> anilorac htron ==") println("== --> Solution must be usable for any State. ==") anilorac htron println("== Loop 15 EXTRA CREDIT (5/5 Points) ==") println("== Fill variable Note with ==") println("== --> Trinity University Has Computer Science, ==") println("== --> Display string Note one word to a line ==") println("== --> Solution must be usable for any Note. ==") What To Turn In

12 PCS1-Ch-3B-Basic-Loops-HW CSCI 1320 Initials P a g e No Lab Is Complete Until Both Are Complete ] You sign & submit the Pledge form. a) Make sure that all program files have a header box with a purpose that clearly defines what you are accomplishing in this lab. b) Make sure that each and every program function has a well formed documentation box that clearly describes the purpose. c) Make sure that each and every program function header box has the appropriate Written By and Date. d) Review the Pledge statement e) Sign & Pledge f) Record the amount of time you think you spent on this lab g) Staple all pages of this lab. Fold in half length-wise (like a hot-dog). Put your name on the outside. Place it on the professor desk before the beginning of lecture on the day it is due. The penalty for late homework will not exceed 25% off per day. 2] Place all programming code associated with this program, if any, in the Professor s Code Drop Box a) I do not accept programs by mail; do not submit labs via ! Comments A] Programs that do not compile are worth little, if anything. B] If a print statement format is off, the penalties will often be less than the 25% per day late penalty; turn in the lab. You would not be happy if you went to Best Buy and purchased a large screen TV that did everything except show the picture; you would consider it pretty worthless. Most users consider software that does not work properly pretty useless as well. If the lab is not working correctly, credit will be small (if any); you might be better to accept a 25% (1 day) late penalty and turn in the lab working correctly! C] Start all programs early so that you can get in contact with the professor if you have problems. D] If you are turning in this lab late, you may hand it to me if I am in the office put it in the mail box outside my office door slide it under the outer door to our suite if locked} slide it under my office door. The sooner I get late labs, the sooner the late penalty meter quits clicking. E] Backup your programs in at least three places. Put a copy on your Y drive. Put a copy on your flash drive. Put a copy on your personal computer. Send yourself a copy in your .