In Java what does string method concat used for? Write an example code.
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In Java what does string method concat used for? Write an example code.
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- Language: Java Write a program that reads a sentence from the keyboard. Depending on the last character of the sentence, print the message identifying the sentence as declarative (ends with a period), interrogative (ends with a question mark), exclamatory (end with an exclamation point), or other. Hint: you can use charAt() method from the String class to extract the last character of the input line. The character of a String str is at str.length()-1 position. For taking a sentence as input use the nextLine() method from the Scanner class. You have to use if/else if selection. Sample input and output: Sample 1 Input: How are you? Output: Interrogative Sample 2 Input: I am good. Output: Declarative Sample 3 Input: That is amazing! Output: Exclamatory Sample 4 Input: Although, Output: Other Answer:JAVA Practice Question for Midterm Write a class with a constructor that accepts a String object as its argument. The class should have a method that returns the number of vowels in the string, and another method that returns the number of consonants in the string. Demonstrate the class in a program by invoking the methods that return the number of vowels and consonants. Print the counts returned. Imagine you are developing a software package for an online shopping site that requires users to enter their own passwords. Your software requires that users’ passwords meet the following criteria: The password should be at least six characters long. The password should contain at least one uppercase and at least one lowercase letter. The password should have at least one digit. a program that asks the user to enter a password, then displays a message indicating whether it is valid or not.In Java, isn't a String an object? When I pass a String from method A to void method B as a parameter and assign the String to a different string literal, the value of String in method A is unchanged! Why is that?
- For the code in java below it shows a deck of 52 cards and asks the name of the two players and makes both players draw five cards from the deck. The code also makes Player A pick a card and Player B has to pick two cards that equal the same value as Player A's card. What I want to be added to the code if for the cards that have been used to be removed and replaced with the other cards in the deck and for the next round to begin with Player B picking a card and Player A picking two cards that equal the same value as Player B's card. I also want the game to keep going between Player A and B until the cards in the deck run out. Main class code: import java.util.ArrayList; import java.util.Scanner; import java.util.List; import java.util.Random; class Main { publicstaticvoid main(String[] args) { String[] suits = {"Hearts", "Clubs", "Spades", "Diamonds"}; String[] numbers = {"A", "2", "3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K"}; for(String oneSuit : suits){ for(String num :…Java considers the String data type as non-primitive, because it contains a sequence of characters and hence there is a predefined class called String dedicated to String processing. The String class has a lot of functions and continues to grow. See https://www.tutorialspoint.com/java/java_strings.htm for more on strings. Your task is to then create a java program that when give a sentence will replace the first occurrence of NUST with Namibia University of Science and Technology. Sample run 1: --- Input ---Welcome to my NUST --- Expected output (text)---Welcome to my Namibia University of Science and Technology. Sample run 2: --- Input ---The nust is a great institution of high learning. --- Expected output (text)---The Namibia University of Science and Technology is a great institution of high learning. Sample run 3: --- Input ---The NuSt was renamed from Polytechnic Of Namibia under Act No. 7 of 2015. --- Expected output (text)---The Namibia University of Science and…Java
- basic java please Write a method starTheString that accepts a string of any size/length and a number. It should then return a new string that is two copies of the string with a set of stars between them equal to the number. For example, the call of starTheString("Hello", 5) o would return "*****Hello*****" 5 stars - Hello - 5 Stars starTheString ("Goodbye", 3) o would return "***Goodbye***" 3 stars – Goodbye - 3 StarsJava: Class: MiddleStr Write a method public static String middle(String str) that returns a string containing the middle character in str if the length of str is odd, or the two middle characters if the length is even. For example, middle("middle") returns "dd". Write a test program [main()] to test the method.Write a program in Java Object Oriented language that performs Addition, Subtraction, Multiplication and Division of two fractions.Make a program in Java Object Oriented language that performs Addition, Subtraction, Multiplication of two complex numbers (a+bi)Write a program in Object Oriented Java language that adds and subtracts two polynomials of the form ax2+bx+c In this case the menu will ask if you want to use fractions, complexes or polynomials and when you select the option, it will show all the requested operations. The operations in each problem must be functions and/or procedures that must be called in the main program.