Method to check if x is power of 2*/ static boolean isPowerOfTwo (int x) { /* First x in the below expression is for the case when x is 0 */ return x!=0 && ((x&(x-1)) == 0); }.
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- Code_Method to check if x is power of 2*/ static boolean isPowerOfTwo (int x) { /* First x in the below expression is for the case when x is 0 */ return x!=0 && ((x&(x-1)) == 0); }match methods with their calls , use the line number as an indicator. int x=2 , y=3 , result1; double d1=3.4 , d2 =6.1, result2; boolean flag; public int function ( int num1); public int function ( int num1 , int num2); public double function ( double num1 , double num2); public boolean function ( int num1 , char c ); public boolean function (int num1 , int num2); the calls: a) result1 = function( x ,10); b) result1 = function(241); c) result2 = function(3.4, d2); e) flag = function( y , ‘9’);Find the error of the following method definition: public static void timesTwo( int x, int y) { int sum=x + y; return sum; }
- Implement the following two methods:/** Return true if the sum of every two sides is* greater than the third side. */public static boolean isValid(double side1, double side2, double side3) /** Return the area of the triangle. */public static double area(double side1, double side2, double side3)Write a test program that reads three sides for a triangle and uses the isValidmethod to test if the input is valid and uses the area method to obtain the area.The program displays the area if the input is valid. Otherwise, it displays thatthe input is invalid.A pentagonal number is defined as n(3n-1)/2 forn = 1 , 2 , …, and so on. Therefore, the first few numbers are 1, 5, 12, 22,. . . . Write a method with the following header that returns a pentagonalnumber:public static int getPentagonalNumber(int n)For example, getPentagonalNumber(1) returns 1 and getPentagonalNumber(2) returns 5. Write a test program that uses this method to display thefirst 100 pentagonal numbers with 10 numbers on each line. Use the %7d formatto display each number.Correct the error in this method: public void getAge() { return age; }
- 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.A pentagonal number is defined as n(3n-1)/2 for n = 1, 2, …, and so on. Therefore, the first few numbers are 1, 5, 12, 22, . . . . Write a method with the following header that returns a pentagonal number: publicstaticintgetPentagonalNumber(int n) For example, getPentagonalNumber(1) returns 1 and getPentagonal- Number(2) returns 5. Write a test program that uses this method to display the first 100 pentagonal numbers with 10 numbers on each line. Use the %7d format to display each number.Question:Write the method in java for following a)Method returns a translated pointb) Method returns a rotated point w.r.t pivot pointc) Method receives a Target point, Pivot point, Translation Factors and Angle in Degree, and it return a Point which is translated and rotated (Sequence is T->R). Must use methods of a and b.
- ************************************************************ Change Java code below so that it outputs a 9x9 board and not a 3x3 board. // program to demonstrate// Tic-Tac-Toe Game.import java.util.*; public class Tic_Tac_Toe{ static String[] board;static String turn;// CheckWinner method will decide the combination//of three box given below. if all three is with same X then X will be winner//and if all three O's is same O's will be winner otherwise draw .static String checkWinner(){for (int a = 0; a < 8; a++) {String line = null; switch (a) {case 0:line = board[0] + board[1] + board[2];break;case 1:line = board[3] + board[4] + board[5];break;case 2:line = board[6] + board[7] + board[8];break;case 3:line = board[0] + board[3] + board[6];break;case 4:line = board[1] + board[4] + board[7];break;case 5:line = board[2] + board[5] + board[8];break;case 6:line = board[0] + board[4] + board[8];break;case 7:line = board[2] + board[4] + board[6];break;}//For X winnerif (line.equals("XXX"))…The following recursive method has been created. This method accepts two integer parameters called a and b respectively. Assume that the name of the method is m and the code in the recursive method is: if ( a > b ) return; if(a % 10 == 3) System.out.print(a+ " "); m(a+1, b); <---- recursive call } what would be the output with the following call m(1,50) where a is 1 and b is 50There are several techniques for implementingthe sqrt method in the Math class. One such technique is known as theBabylonian method. It approximates the square root of a number, n, by repeatedlyperforming the calculation using the following formula:nextGuess = (lastGuess + n / lastGuess) / 2When nextGuess and lastGuess are almost identical, nextGuess is theapproximated square root. The initial guess can be any positive value (e.g., 1).This value will be the starting value for lastGuess. If the difference betweennextGuess and lastGuess is less than a very small number, such as 0.0001,you can claim that nextGuess is the approximated square root of n. If not, nextGuessbecomes lastGuess and the approximation process continues. Implementthe following method that returns the square root of n:public static double sqrt(long n)