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- Write a method that reverses a string in Java. The method must accept one parameter of type String (string to reverse), and returns every second element from the end to the beginning. For example: String: thisisstringResult is: g i t s s hIn netbeans, Write a method named findLastTwoLetters that is passed a String parameter and that prints the last two letters of the string. For example, “ta” is returned if the parameter is “Roberta”. You are guaranteed as a precondition that the parameter will have a length greater than 1. This method can be completed using substring().In some cases, a class depends on itself. That is, an object of one class interactswith another object of the same class. To accomplish this, a method of the classmay accept as a parameter an object of the same class.The concat method of the String class is an example of this situation. Themethod is executed through one String object and is passed another String object as a parameter. Here is an example:str3 = str1.concat(str2);The String object executing the method (str1) appends its characters to thoseof the String passed as a parameter (str2). A new String object is returned asa result and stored as str3. Write java code to implement given conditions
- Write a method that returns the longest common prefix of two strings. For example, the longest common prefix of distance and disinfection is dis. The header of the method is:def prefix(s1, s2)If the two strings have no common prefix, the method returns an empty string.Write a main method that prompts the user to enter two strings and displays their common prefix.Write the method stringSplosion().* * The method takes one parameter, non-empty String str (such as "Code") and* returns a String in the form "CCoCodCode". Notice that this includes the* first character of the original String, followed by the first two characters,* and so on until the whole String is used.* * Examples: stringSplosion("Code") returns "CCoCodCode" stringSplosion("abc")* returns "aababc" stringSplosion("x") returns "x"* * @param str the input String to process.*, @return a new String as described above. Use for loopsWrite a method sameVowelsStrings that takes three Strings as input. The method returns true if the three Strings contains the same unique vowels, false otherwise. Note that vowels are 'a', 'e', 'i', 'o' and 'u'. For example: • sameVowelsString("apple", "cattle", "accept") returns true. All strings have a and e as their vowels. • sameVowelsStrings("apple", "banana", "assume") returns false. The second string is missing the vowel e.The first and second strings are missing the vowel u • sameVowelsStrings("apple", "orange", "recordable" ) returns false. The first string is missing the vowel o. • sameVowelsStrings("e", "ee", "eee" ) returns true. They all have vowel e. Subject: Java Programming
- modify it to create a classthat contains a static method; the method takes a string as a parameter andreturns a boolean value indicating whether the parameter string has repeatedcharacters in it or not. That is, return true if there is at least one characterwhich appear more than once in the string. The string should be input by the user public class Qns3 {public static void main(String args[]) { //input.Scanner Input = new Scanner(System.in);System.out.println ( "Enter the String to check for duplicate characters:");String k = Input.next();// repeated = true.boolean Repeat = false;for (int i = 0; i < k.length(); i++)for (int j = i + 1; j < k.length(); j++)if (k.charAt(i) == k.charAt(j))Repeat=true;if (Repeat){System.out.println("String have repeated characters" +k);}elseSystem.out.println( "String have no repeated characters" +k);} }Java Write an executable program that has just a main method. In main: create an instance of StringBuilder that initially holds an empty string. append your first name to the string. append your surname to the string. display your name. insert your middle initial where it should be and spaces as needed. If you don't have a middle name, fake it. display your name with middle initial. delete your initial and the space(s). display your name in reverse order. SAMPLE OUTPUT John PublicJohn Q PubliccilbuP nhoJWrite a method that accepts a String object as an argument and displays its contents backward.For instance, if the string argument is “gravity” the method should display -“ytivarg”.Demonstrate the method in a program that asks the user to input a string and then passes itto the method.
- Implement a new concat method in the String class you worked on for HW2. The method should return a new String object that represents the text you would end up with if the argument String were "added onto the end of" this String. For example, in the code below, the String object answer should represent the text "bookstore" and true should be printed the screen. char[] bookA = {'b', 'o', 'o', 'k'}; char[] storeA = {'s', 't', 'o', 'r', 'e'}; char[] bookstoreA = {'b', 'o', 'o', 'k', 's', 't', 'o', 'r', 'e'}; String book = new String(bookA); String store = new String(storeA); String bookstore = new String(bookstoreA); String answer = book.concat(store); System.out.println(answer.equals(bookstore)); In the text area below, type in your definition of the concat method. (In other words, type in the code that should replace the //TODO comment.) Your code cannot call any methods. public class String { private char[] data; public String(char[] value) { data = new…Write a program which stores the string value “TREBOR EVIL NO WARTS” using aStringBuilder object. Include statements to do the following using appropriate methodsof the StringBuilder class: Display the length Add the word “NUTS” at the end of the previous sentence and display the new length. Add a comma in between of original sentence and the word added. Display the reverse of the entire sentenceYou are given two strings, pattern and value. The pattern string consists ofjust the letters a and b, describing a pattern within a string. For example, the string catcatgocatgo matches the pattern aabab (where cat is a and go is b). It also matches patterns like a, ab, and b. Write a method to determine if value matches pattern.