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Author Question: Analyze the following code:public class Test { public static void main(String[] args) {int[] x = {1, ... (Read 68 times)

vinney12

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Question 1

Fill in the code to complete the following method for checking whether a string is a palindrome.

public static boolean isPalindrome(String s) {
if (s.length() <= 1) // Base case
return true;
else if ________
return false;
else
return isPalindrome(s.substring(1, s.length() - 1));
}

◦ (s.charAt(0) != s.charAt(s.length())) // Base case
◦ (s.charAt(1) != s.charAt(s.length() - 1)) // Base case
◦ (s.charAt(0) != s.charAt(s.length() - 1)) // Base case
◦ (s.charAt(1) != s.charAt(s.length())) // Base case

Question 2

Analyze the following code:

public class Test {
public static void main(String[] args) {
int[] x = {1, 2, 3, 4, 5};
xMethod(x, 5);
}

public static void xMethod(int[] x, int length) {
System.out.print(" " + x[length - 1]);
xMethod(x, length - 1);
}
}

◦ The program displays 5 4 3 2 1 and then raises an ArrayIndexOutOfBoundsException.
◦ The program displays 5 4 3 2 1.
◦ The program displays 1 2 3 4 6.
◦ The program displays 1 2 3 4 5 and then raises an ArrayIndexOutOfBoundsException.


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Marked as best answer by vinney12 on May 6, 2020

matt95

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vinney12

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  • Posts: 586
Reply 2 on: May 6, 2020
Wow, this really help


sultansheikh

  • Member
  • Posts: 335
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

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