Author Question: Fill in the code to complete the following method for sorting a list.public static void ... (Read 69 times)

joe · **on:** May 6, 2020

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) {
return isPalindrome(s, 0, s.length() - 1);
}

public static boolean isPalindrome(String s, int low, int high) {
if (high <= low) // Base case

return true;

else if (s.charAt(low) != s.charAt(high)) // Base case

return false;

else

return ________;

}

◦ isPalindrome(s)
◦ isPalindrome(s, low + 1, high)
◦ isPalindrome(s, low + 1, high - 1)
◦ isPalindrome(s, low, high - 1)
◦ isPalindrome(s, low, high)

Question 2

Fill in the code to complete the following method for sorting a list.

public static void sort(double[] list) {
________;
}

public static void sort(double[] list, int high) {
if (high > 1) {

// Find the largest number and its index

int indexOfMax = 0;

double max = list[0];

for (int i = 1; i <= high; i++) {

if (list[i] > max) {

max = list[i];

indexOfMax = i;

}

// Swap the largest with the last number in the list

list[indexOfMax] = list[high];

list[high] = max;

// Sort the remaining list

sort(list, high - 1);

}
}

◦ sort(list, list.length)
◦ sort(list)
◦ sort(list, list.length - 1)
◦ sort(list, list.length - 2)

flexer1n1 · **Reply #1 on:** May 6, 2020

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