Chapter 5. PC #17. Rock, Paper, Scissors Game (page 317) Write a program that lets the user play the game of Rock, Paper, Scissors against the computer. The program should work as follows. 2. When the program begins, a random number in the range of 0 through 2 is generated. If the number is 0, then the computer has chosen rock. If the number is 1, then the computer has chosen paper. If the number is 2, then the computer has chosen scissors. (Do not display the computer choice yet.) 3. The user enters his or her choice of "rock", "paper", or "scissors" at the keyboard. You should use 1 for rock, 2 for paper, and 3 for scissors. Internally, you can store 0, 1, and 2 as the user choice, to match with the above schema. 4. Both user and computer choices are displayed. 5. A winner is selected according to the following rules: If one player chooses rock and the other player chooses scissors, then rock wins. (The rock smashes the scissors.) If one player chooses scissors and the other player chooses paper, then scissors wins. (Scissors cuts paper.) If one player chooses paper and the other player chooses rock, then paper wins. (Paper wraps rock.) If both players make the same choice, then it is a draw. If you prefer, you can use circular addition for selecting a winner. For example if computer_choice + 1 modulo 3 is equal to human_choice, then the user wins. 6. Then the user is prompted for continuing the game. If the user selects "yes" or "y" (case insensitive) then another round is played. If the user selects "no" or "n", then the program exits. Make sure to divide the program into methods that perform each major task. As always, make sure you only have one Scanner object linked to the keyboard. Also, you should only have one random number generator (shown above). Enter 1 for rock, 2 for paper, and 3 for scissors.\n 1ENTER Your choice: rock. Computer choice: paper.\n Computer wins.\n Would you like to play more?\n nENTER Test Case 2 Command Line arguments: 123456789 Enter 1 for rock, 2 for paper, and 3 for scissors.\n 2ENTER Your choice: paper. Computer choice: paper.\n It's a draw.\n Would you like to play more?\n nENTER Test Case 3 Command Line arguments: 123456789 Enter 1 for rock, 2 for paper, and 3 for scissors.\n 3ENTER Your choice: scissors. Computer choice: paper.\n You win.\n Would you like to play more?\n nENTER Test Case 4 Command Line arguments: 123456789 Enter 1 for rock, 2 for paper, and 3 for scissors.\n 0ENTER Please respond 1, 2, or 3.\n Enter 1 for rock, 2 for paper, and 3 for scissors.\n 1ENTER Your choice: rock. Computer choice: paper.\n Computer wins.\n Would you like to play more?\n nENTER

Chapter 5. PC #17. Rock, Paper, Scissors Game (page 317) Write a program that lets the user play the game of Rock, Paper, Scissors against the computer. The program should work as follows. 2. When the program begins, a random number in the range of 0 through 2 is generated. If the number is 0, then the computer has chosen rock. If the number is 1, then the computer has chosen paper. If the number is 2, then the computer has chosen scissors. (Do not display the computer choice yet.) 3. The user enters his or her choice of "rock", "paper", or "scissors" at the keyboard. You should use 1 for rock, 2 for paper, and 3 for scissors. Internally, you can store 0, 1, and 2 as the user choice, to match with the above schema. 4. Both user and computer choices are displayed. 5. A winner is selected according to the following rules: If one player chooses rock and the other player chooses scissors, then rock wins. (The rock smashes the scissors.) If one player chooses scissors and the other player chooses paper, then scissors wins. (Scissors cuts paper.) If one player chooses paper and the other player chooses rock, then paper wins. (Paper wraps rock.) If both players make the same choice, then it is a draw. If you prefer, you can use circular addition for selecting a winner. For example if computer_choice + 1 modulo 3 is equal to human_choice, then the user wins. 6. Then the user is prompted for continuing the game. If the user selects "yes" or "y" (case insensitive) then another round is played. If the user selects "no" or "n", then the program exits. Make sure to divide the program into methods that perform each major task. As always, make sure you only have one Scanner object linked to the keyboard. Also, you should only have one random number generator (shown above). Enter 1 for rock, 2 for paper, and 3 for scissors.\n 1ENTER Your choice: rock. Computer choice: paper.\n Computer wins.\n Would you like to play more?\n nENTER Test Case 2 Command Line arguments: 123456789 Enter 1 for rock, 2 for paper, and 3 for scissors.\n 2ENTER Your choice: paper. Computer choice: paper.\n It's a draw.\n Would you like to play more?\n nENTER Test Case 3 Command Line arguments: 123456789 Enter 1 for rock, 2 for paper, and 3 for scissors.\n 3ENTER Your choice: scissors. Computer choice: paper.\n You win.\n Would you like to play more?\n nENTER Test Case 4 Command Line arguments: 123456789 Enter 1 for rock, 2 for paper, and 3 for scissors.\n 0ENTER Please respond 1, 2, or 3.\n Enter 1 for rock, 2 for paper, and 3 for scissors.\n 1ENTER Your choice: rock. Computer choice: paper.\n Computer wins.\n Would you like to play more?\n nENTER

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter9: Advanced Array Concepts

Section: Chapter Questions

Problem 2GZ

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Question

Chapter 5. PC #17. Rock, Paper, Scissors Game (page 317)

Write a program that lets the user play the game of Rock, Paper, Scissors against the computer. The program should work as follows.

2. When the program begins, a random number in the range of 0 through 2 is generated. If the number is 0, then the computer has chosen rock. If the number is 1, then the computer

has chosen paper. If the number is 2, then the computer has chosen scissors. (Do not display the computer choice yet.)

3. The user enters his or her choice of "rock", "paper", or "scissors" at the keyboard. You should use 1 for rock, 2 for paper, and 3 for scissors. Internally, you can store 0, 1, and 2 as the user choice, to match with the above schema.

4. Both user and computer choices are displayed.

5. A winner is selected according to the following rules:

If one player chooses rock and the other player chooses scissors, then rock wins. (The rock smashes the scissors.)

If one player chooses scissors and the other player chooses paper, then scissors wins. (Scissors cuts paper.)

If one player chooses paper and the other player chooses rock, then paper wins. (Paper wraps rock.)

If both players make the same choice, then it is a draw.

If you prefer, you can use circular addition for selecting a winner. For example if computer_choice + 1 modulo 3 is equal to human_choice, then the user wins.

6. Then the user is prompted for continuing the game. If the user selects "yes" or "y" (case insensitive) then another round is played. If the user selects "no" or "n", then the program exits.

Make sure to divide the program into methods that perform each major task. As always, make sure you only have one Scanner object linked to the keyboard. Also, you should only have one random number generator (shown above).

Enter 1 for rock, 2 for paper, and 3 for scissors.\n
1ENTER
Your choice: rock. Computer choice: paper.\n
Computer wins.\n
Would you like to play more?\n
nENTER

Test Case 2

Command Line arguments:

123456789

Enter 1 for rock, 2 for paper, and 3 for scissors.\n
2ENTER
Your choice: paper. Computer choice: paper.\n
It's a draw.\n
Would you like to play more?\n
nENTER

Test Case 3

Command Line arguments:

123456789

Enter 1 for rock, 2 for paper, and 3 for scissors.\n
3ENTER
Your choice: scissors. Computer choice: paper.\n
You win.\n
Would you like to play more?\n
nENTER

Test Case 4

Command Line arguments:

123456789

Enter 1 for rock, 2 for paper, and 3 for scissors.\n
0ENTER
Please respond 1, 2, or 3.\n
Enter 1 for rock, 2 for paper, and 3 for scissors.\n
1ENTER
Your choice: rock. Computer choice: paper.\n
Computer wins.\n
Would you like to play more?\n
nENTER

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