Assume that you are designing a simple text editor (like Notepad) that supports inserting text, copy, paste and editing for any size file (including book-length files). Between the String objects and StringBuffer objects, which one is more appropriate and why? ) String, because StringBuffer is read-only ) String, because it will execute more efficiently String, because only simple operations are needed StringBuffer, because it allows for changing the characters stored in the object StringBuffer, because it has copy and paste methods
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- Lab Task 04: Include the methods in the file KMP_Implementation.txt in a complete Java program that prompts for and reads a text string and then a text pattern to search for in the text. It then displays the result of the search. Sample program runs: Enter the text: ABABСАВАВАВСАВАВСАВАВСАВАВКККАВАВСАВАВ Enter the pattern to search for: ABABCABAB Pattern found at these text starting indexes: 0 Enter the text: A KFUPM STUDENT Enter the pattern to search for: KFE Pattern not in text. 7 12 17 29import Prelude hiding (lookup) data Exp = Num Int | Add Exp Exp | Sub Exp Exp | Mul Exp Exp | Div Exp Exp | Var String | Let String Exp Exp | App Exp Exp | Fnc String Exp deriving (Show) type Env = [(String, Val)] data Val = CVal Int | FnVal String Exp Env | Error String deriving (Show) {-Implement a function lookup:: Env -> String -> Val that looks up the value of a variable within a context. This function returns the value of the variable if found and returns an error otherwise. -} lookup :: Env -> String -> Val -- code here-- {- Implement a function eval:: Exp -> Env -> Val to evaluate an expression with an initial context and return a value. Errors occur in the following cases: (a) Left-hand-side of a function application is not a function. (b) Use an undefined variable (c) Arithmetic expression where operand is not a number -} eval :: Env-> Exp -> Val -- code here --IN JAVA SCRIPT Programming Create a function that takes a string as an argument and returns true if each letter in the string is surrounded by a plus sign. Return false otherwise. Examples plusSign("+f+d+c+#+f+") → true plusSign("+d+=3=+s+") → true plusSign("f++d+g+8+") false plusSign("+s+7+fg+r+8+") → false
- In python: Implement the get_num_of_non_WS_characters() function. get_num_of_non_WS_characters() has a string parameter and returns the number of characters in the string, excluding all whitespace. Implement the get_num_of_words() function. get_num_of_words() has a string parameter and returns the number of words in the string3.2. The string library provides many functions for string processing. Find out what each of the string function listed below does: i. strcpy () ii. strcmp () iii. strcat () iv. gets () v. puts ()IN JAVA Create a function that takes a string and returns the number of alphanumeric characters that occur more than once. Examples duplicateCount ("abcde") → 0 duplicateCount ("aabbcde") → 2 duplicateCount ("Indivisibilities") → 2 duplicateCount ("Aa") → 0 // Case sensitive
- The files provided in the code editor to the right contain syntax and/or logic errors. In each case, determine and fix the problem, remove all syntax and coding errors, and run the program to ensure it works properly. // Converts a string to lowercase, and // displays the string's length // as well as a count of letters public class DebugSeven4 { public static void main(String[] args) { String aString = "HELP!! I need to get 37 things DONE today!!"; int numLetters = 0. int stringLength = aString.Length(); System.out.println("In all lowercase, the sentence is: "); for(int i = 0; i < stringLength; i++) { char ch = Character.toTheLowerCase(aString.charAt(i)); System.out.print(ch); if(Character.isLetter(ch)) numLetters--; } System.out.println(); System.out.println ("The number of CHARACTERS in the string is " + stringLength); System.out.println(The number of LETTERS is "…1. Copy some text from a news article, paste it in the Notepad++ editor and save it in a textfile named testtext.txt;2. Write a Java program to read the words in the text file into an ArrayList object,display the information about how many words there are in the text file, and display thewords in the order they appear in the text file. Then sort the array and display the sortedarray. Take a screenshot of the output window.3. Submit your text file, the screenshot, and the Java source code fileDesign and implement an application that reads a sequence of upto 25 pairs of names and postal (ZIP) codes for individuals. Storethe data in an object designed to store a first name (string), lastname (string), and postal code (integer). Assume that each line ofinput will contain two strings followed by an integer value, eachseparated by a tab character. Then, after the input has been readin, print the list in an appropriate format to the screen.
- Write a program that reads a sentence and store it in an array of characters. The program also reads a word and store in it a string variable. The program then conceals the word in the sentence with the character @'. Sample input / output: Enter a sentence: The town in which we live is a green town and big Enter a word: town Result: The @aa@ in which we live is a green @@@@ _and bigWrite in C Language Spilitology Yosef is a peculiar fellow. He introduced the idea to study a string by splitting it into two, and he called it Splitology. Why split a string? We do not know. Didn’t we say that Yosef is a weird one? Yosef is interested in one particular type of string, a palindrome. A palindrome is a string that is the same for both forwards and backwards. Example of palindrome strings are “ada”, “taat”, and “radar”. On the other hand, string such as “taman” is not a palindrome; notice that “taman” becomes “namat” if read backwardsand it’s not the same as “taman”. As the idea of Splitology is still new, Yosef is investigating whether a string can be split into two non-empty strings such that each string is a palindrome. For example, the string “malamini” can be split into “malam” and “ini” while both of them are palindrome. Another example is “ababab”. It can be split into “aba” and “bab”, and both of them are palindrome. Note that “ababab” can also be split into…OCaml Code: The goal of this project is to understand and build an interpreter for a small, OCaml-like, stackbased bytecode language. Make sure that the code compiles correctly and provide the code with the screenshot of the output. The code must have a function that takes a pair of strings (tuple) and returns a unit. You must avoid this error that is attached as an image. Make sure to have the following methods below: -Push integers, strings, and names on the stack -Push booleans -Pushing an error literal or unit literal will push :error: or :unit:onto the stack, respectively -Command pop removes the top value from the stack -The command add refers to integer addition. Since this is a binary operator, it consumes the toptwo values in the stack, calculates the sum and pushes the result back to the stack - Command sub refers to integer subtraction -Command mul refers to integer multiplication -Command div refers to integer division -Command rem refers to the remainder of integer…