JAVA Program For this program you should not use a while loop. Instead try to write a recursive method that doesn't copy the string over and over again. You still have time to change it.
JAVA Program For this program you should not use a while loop. Instead try to write a recursive method that doesn't copy the string over and over again. You still have time to change it.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question
JAVA Program
For this program you should not use a while loop. Instead try to write a recursive method that doesn't copy the string over and over again. You still have time to change it.
Chapter 16. PC #5. Palindrome Detector (page 1073)
A palindrome is any word, phrase, or sentence that reads the same forward and backward. Here are some well-known palindromes:
Able was I, ere I saw Elba
A man, a plan, a canal, Panama
Desserts, I stressed
Kayak
Write a boolean method that uses recursion to determine whether a String argument is a palindrome. The method should return true if the argument reads the same forward and backward. Demonstrate the method in a program.
The program should ask the user to enter a string, which is checked for palindrome property. The program displays whether the given input is a palindrome or not, then prompts the user to enter another string. If the user enters QUIT (case insensitive, then exit the program).
Test Case 1
Passed!
Please enter a string to test for palindrome or type QUIT to exit:\n
Desserts, I stressedENTER
The input is a palindrome.\n
Please enter a string to test for palindrome or type QUIT to exit:\n
KayakENTER
The input is a palindrome.\n
Please enter a string to test for palindrome or type QUIT to exit:\n
quitENTER
Desserts, I stressedENTER
The input is a palindrome.\n
Please enter a string to test for palindrome or type QUIT to exit:\n
KayakENTER
The input is a palindrome.\n
Please enter a string to test for palindrome or type QUIT to exit:\n
quitENTER
Test Case 2
Passed!
Please enter a string to test for palindrome or type QUIT to exit:\n
dadENTER
The input is a palindrome.\n
Please enter a string to test for palindrome or type QUIT to exit:\n
quitENTER
dadENTER
The input is a palindrome.\n
Please enter a string to test for palindrome or type QUIT to exit:\n
quitENTER
Test Case 3
Passed!
Please enter a string to test for palindrome or type QUIT to exit:\n
momENTER
The input is a palindrome.\n
Please enter a string to test for palindrome or type QUIT to exit:\n
QuitENTER
momENTER
The input is a palindrome.\n
Please enter a string to test for palindrome or type QUIT to exit:\n
QuitENTER
Test Case 4
Passed!
Please enter a string to test for palindrome or type QUIT to exit:\n
helloENTER
The input is not a palindrome.\n
Please enter a string to test for palindrome or type QUIT to exit:\n
quiTENTER
helloENTER
The input is not a palindrome.\n
Please enter a string to test for palindrome or type QUIT to exit:\n
quiTENTER
Test Case 5
Passed!
Please enter a string to test for palindrome or type QUIT to exit:\n
b,a,dENTER
The input is not a palindrome.\n
Please enter a string to test for palindrome or type QUIT to exit:\n
quitENTER
b,a,dENTER
The input is not a palindrome.\n
Please enter a string to test for palindrome or type QUIT to exit:\n
quitENTER
Test Case 6
Passed!
Please enter a string to test for palindrome or type QUIT to exit:\n
Able was I, ere I saw ElbaENTER
The input is a palindrome.\n
Please enter a string to test for palindrome or type QUIT to exit:\n
quitENTER
Able was I, ere I saw ElbaENTER
The input is a palindrome.\n
Please enter a string to test for palindrome or type QUIT to exit:\n
quitENTER
Test Case 7
Passed!
Please enter a string to test for palindrome or type QUIT to exit:\n
A man, a plan, a canal, PanamaENTER
The input is a palindrome.\n
Please enter a string to test for palindrome or type QUIT to exit:\n
quitENTER
A man, a plan, a canal, PanamaENTER
The input is a palindrome.\n
Please enter a string to test for palindrome or type QUIT to exit:\n
quitENTER
Test Case 8
Passed!
Please enter a string to test for palindrome or type QUIT to exit:\n
@abENTER
The input is not a palindrome.\n
Please enter a string to test for palindrome or type QUIT to exit:\n
ab@ENTER
The input is not a palindrome.\n
Please enter a string to test for palindrome or type QUIT to exit:\n
@aaENTER
The input is a palindrome.\n
Please enter a string to test for palindrome or type QUIT to exit:\n
aa@ENTER
The input is a palindrome.\n
Please enter a string to test for palindrome or type QUIT to exit:\n
quitENTER
@abENTER
The input is not a palindrome.\n
Please enter a string to test for palindrome or type QUIT to exit:\n
ab@ENTER
The input is not a palindrome.\n
Please enter a string to test for palindrome or type QUIT to exit:\n
@aaENTER
The input is a palindrome.\n
Please enter a string to test for palindrome or type QUIT to exit:\n
aa@ENTER
The input is a palindrome.\n
Please enter a string to test for palindrome or type QUIT to exit:\n
quitENTER
Test Case 9
Passed!
Please enter a string to test for palindrome or type QUIT to exit:\n
abbaENTER
The input is a palindrome.\n
Please enter a string to test for palindrome or type QUIT to exit:\n
abcaENTER
The input is not a palindrome.\n
Please enter a string to test for palindrome or type QUIT to exit:\n
aabcaaENTER
The input is not a palindrome.\n
Please enter a string to test for palindrome or type QUIT to exit:\n
abaceedabaENTER
The input is not a palindrome.\n
Please enter a string to test for palindrome or type QUIT to exit:\n
quitENTER
abbaENTER
The input is a palindrome.\n
Please enter a string to test for palindrome or type QUIT to exit:\n
abcaENTER
The input is not a palindrome.\n
Please enter a string to test for palindrome or type QUIT to exit:\n
aabcaaENTER
The input is not a palindrome.\n
Please enter a string to test for palindrome or type QUIT to exit:\n
abaceedabaENTER
The input is not a palindrome.\n
Please enter a string to test for palindrome or type QUIT to exit:\n
quitENTER
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