A pentagonal number is defined as n(3n−1) ∕ 2 for n = 1, 2, . . ., etc.. Therefore, the first few numbers are 1, 5, 12, 22, . . . . Write a method with the following header that returns a pentagonal number:public static int getPentagonalNumber(int n) For example, getPentagonalNumber(1) returns 1 and getPentagonalNumber(2) returns 5. In Java, Write a test program that uses this method to display the first 100 pentagonal numbers with 10 numbers on each line. Numbers are separated by exactly one space.

Q: Write a method1 that returns whether a given positive integer has at least one odd digit whose value…

A: Programming instructions: Create a class. Create a function which takes a number in the argument.…

Q: Please do this in Java! 13. isPrime Method A prime number is a number that is evenly divisible only…

A: Prime numbers : A number is said to be a prime number if the factors of the number are 1 and itself.…

Q: Java

A: Note: Code comments have been included in the source code itself to have a better understanding of…

Q: Write a static method userPasswordMatch(): Takes 2 String (s1, s2) input Define a boolean variable…

A: Solution:   Given, Write a static method userPasswordMatch(): Takes 2 String (s1, s2) input…

Q: Create a method which will accept a positive integer input and return a value according to the…

A: - The question is to create a method which will accept a positive integer input and return a value…

Q: Write a method (with a parameter n) , n: integer type that prints numbers from 1 to n. • The print…

A: Given: Solution code in java this code run all java platform.

Q: write a method to read a list of salary amounts that start with a dollar sign $ and followed by a…

A: According to the information given:- We have to follow the instruction in order to get the desired…

Q: 2. Write a program that simulates tossing a coin. Prompt the user for how many times to toss the…

A: Step 1 : STARTStep 2 : declare required variablesStep 3 : if result is 0 then return heads else…

Q: A child is running up a staircase with n steps and can hop either 1 step, 2 steps, or 3 steps at a…

A: These question answer is as follows

Q: Write a method that takes 3 numbers and returns true if the delta between all the numbers is the…

A: import java.lang.*; import java.util.*;   class GFG {      static int isMultipleOf3(int n)     {…

Q: A pet shop wants to give a discount to its clients if they buy one or more pets and at least four…

A: The program has two main parts – the part which receives the input and the part which validates the…

Q: public static void print Pattern (int n) The main method that calls printPattern is given below:…

A: Code along with comments:  import java.util.*; //importing util package for calling scanner class to…

Q: Solved in Java      Write a method maxMagnitude() with two integer input parameters that returns…

A: The Answer start from step-2.

Q: Write a static method that draws an arrow line from astartingpoint to an ending point in a pane…

A: Program structure Import all necessary classes to create an arrow line. Create a class Line1 that…

Q: Take a look at the header of the method below, and then implement a sample call to it in your code.…

A: Algorithm: 1. Create an object of the Main class and store it in a variable obj. 2. Call the…

Q: Consider the following methods: public static int mystery(int n) { if (n = x) { return y; } return…

A: You can check the answers given below. CODE :

Q: JAVA Define the method printValue() that takes two integer parameters and outputs the product of…

A: Step 1 : STARTStep 2 : declare variablesStep 3 : implement method called as printValueStep 4 : input…

Q: class Geometry

A:

Q: f(input==0){                 return 1;             }else{                 return 0;             }…

A: The code defines a class named Solution.Inside the class, there is a method countZerosRec that takes…

Q: A palindrome is any word, phrase, or sentence that reads the same forward and back Here are some…

A: We need to define the function to accept a string and check for palindrome property.

Q: Write a java method that receives height of PTUKExam triangle and then displays a shape as shown in…

A: The  solution can be implemented using the JAVA and below is the code import java.io.*;import…

Q: An integer number is said to be a perfect number if its factors, including 1 (but not the number…

A: PROGRAM CODE: import java.util.Scanner;public class Main {        //creating scanner object to get…

Q: Twin prime numbers, the difference between them is 2. Write a method that prints all duplicate…

A: Read the limit n. For i to n: Check which numbers are prime. then for those prime numbers, Check…

Q: Write a method that returns the sum of a range of numbers. It should take the starting and ending…

A: The above question is solved in step 2 :-

Q: Complete the method definition to output the hours given minutes. Output for sample program: 3.5…

A: Here I have first of all created a class named HourToMinConv, and in this class, I have created a…

Q: drawTriangle Write a method called print Triangle that takes an integer numStars and prints a…

A: Logic:- read n from user. Iterate from i=n to i>0        Iterate from j=0 to j<i…

Q: For this problem you will accept a single BigInteger value. This number can potentially get VERY…

A: The complete JAVA code is given below with output screenshot

Q: A pet shop wants to give a discount to its clients if they buy one or more pets and at least four…

A: public class Main{    public static void discount(double prices[],boolean isPet[],int nItems)    {…

Q: Write the following two methods: computeDiameter: This method accepts the radius (r) of a circle,…

A: Answer: 1.“computeDiameter” method: Declaration: //Declare and initialize radius  double radius =…

Methods of StringBuilder class

The StringBuilder class can be used to create mutable strings. The methods defined in the StringBuilder class are widely used to manipulate and concatenate strings. It is a non-synchronized class which has public methods that can be accessed by multiple threads. It is not thread-safe.