A palindrome is a string that is spelled the same way forward and backward. Some examples of palindr are "radar," "able was i ere i saw elba" and (if spaces are ignored) “a man a plan a canal panama." Write recursive method testPalindrome that returns boolean value true if the string stored in an array is a
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- Exercise GradesStatistics (Method): Write a program called GradesStatistics, which reads in n grades (of int between 0 and 100, inclusive) and displays the average, minimum, maximum, median and standard deviation. Display the floating-point values upto 2 decimal places. Your output shall look like:Enter the number of students: 4Enter the grade for student 1: 50Enter the grade for student 2: 51Enter the grade for student 3: 56Enter the grade for student 4: 53{50,51,56,53}The average is: 52.50The median is: 52.00The minimum is: 50The maximum is: 56The standard deviation is: 2.29The formula for calculating standard deviation is:Hints:public class GradesStatistics {public static int[] grades; // Declare an int[], to be allocated later.// This array is accessible by all the methods.public static void main(String[] args) {readGrades(); // Read and save the inputs in int[] gradesprintArray(grades);System.out.println("The average is " + average(grades));System.out.println("The median is " +…Write the method print that receives a String array as a parameter and prints one string per line. Use the method header: public static void print(String[] array)Q1) Write a method that checks whether two words are anagrams. Two words are anagrams if they contain the same letters in any order. For example, "silent" and "listen" are anagrams. Write a test program that prompts the user to enter two strings and, if they are anagrams, displays "anagram", otherwise displays "not anagram". Note: The header of the method is as follows: public static boolean isAnagram(String s1, String s2) Sample Input #1: Enter two strings: Silent listen Sample Output #1: The string “Silent” and “listen” are anagrams. Sample Input #1: Enter two strings: teach peach Sample Output #1: The string “teach” and “peach” aren’t anagrams.
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