The String class is a mutable class. O True O False
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- Time le The string class in C++ comes with many methods which serve either as accessors or mutators. Choose THREE accessor methods from the class. length substr O append Bur C insert compare O strlen Next p 0 0 0 0 WANNEE B 288 mm p BABAT Ser 88805 RAS 8888Python Language Useful websites: : http://en.wikipedia.org/wiki/Radix http://www.purplemath.com/modules/numbbase.htm Special Rules: Use only Boolean/math expressions and conditional statements (if-statements). Do not use built-in functions for converting integers into a string representation. Here to start with: kthDigit(x: int, b: int, k: int) -> int .........the function returns the result as a string if the expression is legal. the expression returns an empty string and then put the function public class Ez1MathEval {public String heavywtEval (String exprn) {return ""}}
- public String firstAndLast(String str) { //declare and create your first char //declare and create your second char //return your first and last char as a String }Write the countVowels function which counts the number of vowels using the string class as follows: int countVowels(const string& s) Write a test program that prompts the user to enter a string, invokes the countVowels function and displays the total number of vowels in the string.All the Same Letter Write a method to determine if all the letters in a String are the same letter. public boolean sameLetter(String str) { //declare first character variable //create statements to compare each character and include return statement //create other return statement }
- Define the term " printf string " .Alternate Character DisplayWrite a method that accepts a String object as an argument and then returns the alternate characters as substring starting from index 0. For instance, if the string argument passed is “GREAT”, the method should return “GET”. Demonstrate the method in a program that asks the user to input a string and then passes it to the method.Static Length, Limited Dynamic Length, and Dynamic Length String implementations have what advantages and disadvantages?
- Why is a string considered an immutable data type?PROBLEM STATEMENT: Return the longest String! CN YOU HELP ME WITH THIS JAVA CODE PROBLEMTarget The aim of this work is to use control structures and loops. Read carefully the problem and understand what needs to be done. Read your description is given and when you understand how it works, then start designing its solution and its implementation on the computer applying the syntax and semantics of the language Java programming. Write a LongestDupSubstring.java program that accepts a string as input and compute and print the longest sub-string displayed in two times without overlap (see 5th example for overlap). If there are more from one of such sub-strings, the program displays the first one it finds as well the number of characters in the substring. If there is no substring that appears 2 times, then the program will not print anything. Execution examples (the user's input is red and the longer in length 2 substrings) 1 Example Give a string: again and again Longest substring: again Longest substring size: 5 2 Example Give a string: seven saints and seven dinners Longest…