To perform a series of computational experiments, create a data type PercolationStats with the following API: public class PercolationStats { // perform independent trials on an n-by-n grid public PercolationStats (int n, int trials) // sample mean of percolation threshold public double mean () // sample standard deviation of percolation threshold public double stddev () // low endpoint of 95% confidence interval public double confidenceLow() // high endpoint of 95% confidence interval public double confidenceHigh() // test client (see below) public static void main(String[] args) The constructor takes two arguments n and T, and perform T independent computational experiments (discussed above) on an n-by-n grid. Using this experimental data, it calculates the mean standard deviation, and the 95% confidence interval for the percolation threshold. Standard libraries. Use stdRandom to generate random numbers; use stdstats to compute the sample mean and standard deviation; use Stopwatch to measure the running time. Corner cases. Throw an 1llegalArgumentException in the constructor if either n s0 or Ts0. Test client. The test client takes two command-line arguments n and T and prints the relevant statistics for T computational experiments on n-by-n grid.

Design and implement a program that implements Euclid’s algorithm for finding the greatest common divisor of two positive integers. The greatest common divisor is the largest integer that divides both values without producing a remainder. In a class called DivisorCalc, define a static method called gcd that accepts two integers, num1 and num2. Create a driver to test your implementation. The recursive algorithm is defined as follows:gcd (num1, num2) is num2 if num2 <= num1 and num2evenly divides num1gcd (num1, num2) is gcd(num2, num1) if num1 < num2gcd (num1, num2) is gcd(num2, num1%num2) otherwise

In netbeans using Java create a class Palindrome2 which replaces the while loop of problem 13 with a for loop.

A java generic class called Validator stores requirements for user input and provides a method, boolean isValid(input), that determines if the provided input meets the requirements. The data type of input will either be String or Boolean depending on the type of data the validator accepts. The Validators that your system will need, and their requirements, are as follows: Password-A password is a String has the following properties: Minimum and maximum acceptable length (inclusive). The minimum number of lowercase letters that the password must contain (default = 0, which means that lowercase letters are not required). The minimum number of uppercase letters that the password must contain (default = 0). The minimum number of digits that the password must contain (default = 0). To be valid, a password must meet the length requirements and contain at least the minimum number of each character type. Additionally, a valid password cannot contain a space (“ “). To keep things…

import java.util.Scanner; public class LabProgram {    public static void main(String[] args) {        Scanner scnr = new Scanner(System.in);         int n = scnr.nextInt();        int[] arr = new int[n];         for (int i = 0; i < n; i++) {            arr[i] = scnr.nextInt();        }         for (int i = n - 1; i >= 0; i--) {            System.out.print(arr[i]);             if (i > 0) {                System.out.print(",");            }        }    }}

Write a Java program that expands a given binomial (x + y)^n, where integer n is user input. To do the work of the binomial expression, first create a method that accepts n as a parameter and then returns an array holding the coefficients needed for the binomial expansion using the Pascal’s Triangle method. Create a 2nd method which takes the array holding the coefficients as a parameter and prints the appropriate binomial expansion. For example, if n = 5 is entered by the user, the method calculating the coefficients should return {1,5,10,10,5,1} and the method that prints the expansion should print the following: (x + y)^5 = x^5 + 5x^4y + 10x^3y^2 + 10x^2y^3 + 5xy^4 + y^5 Your main method should use an appropriate loop for repeated inputs and automatically call the methods to calculate the coefficients and print the binomial expansion. There isn’t a need for a menu although you should ask the user if they want to quit or continue after their binomial expansion is printed each time.…