1 import java.util.Random; 2 import java.util.StringJoiner; 3 4 public class preLabC { 5 6- 7 8 9 10 11 12 13 14 15 16 17 | 18 19 20 } public static String myMethod(MathVector inputVector) { String vectorStringValue = new String(); // empty String object System.out.println("here is the contents object, inputVector: " + inputVector); // get a String out of that MathVector object. Do it here. On the next line. } // return the double value here. return vectorStringValue; ▾ Description A MathVector object will be passed to your method. Return its contents as a String. If you look in the file MathVector.java you'll see there is a way to output the contents of a MathVector object as a String. This makes it useful for displaying to the user. *Returns a String representation of this vector. The String should be in the format "[1, 2, 3]" * * @return a String representation of this vector * @apiNote **DO NOT** use the built-in (@code Arrays.toString()) method. @Override public String toString() { var sj= new StringJoiner(",", "[", "1"); for (var e: array) { sj.add(String.value0f(e)); } return sj.toString(); You might have noticed that there's an @override term there. That's because many objects already have a "toString()" method associated with them... because Java was designed to include them by default. Here, the override tells Java "I know, I know. You already have a toString() that you'd assign here. But it's not good enough. Here's a better one for this particular kind of object." It's a little bit like saying "Most humans have two legs. So, by default, I'll give everyone two legs. But sometimes we override that and give no legs, or just one leg to a person. And sometimes we give them four so that they can be a centaur!" To use this in a println() method, just name your object. The toString() method will be called implicitly. Or you can just write System.out.println("look! " + myObject.toString()); ▸

How do I make the code work? Code: import java.util.*; import java.util.Arrays; public class Movie { private String movieName; private int numMinutes; private boolean isKidFriendly; private int numCastMembers; private String[] castMembers; // default constructor public Movie() { this.movieName = "Flick"; this.numMinutes = 0; this.isKidFriendly = false; this.numCastMembers = 0; this.castMembers = new String[10]; } // overloaded parameterized constructor public Movie(String movieName, int numMinutes, boolean isKidFriendly, String[] castMembers) {this.movieName = movieName;this.numMinutes = numMinutes;this.isKidFriendly = isKidFriendly;this.numCastMembers=0;this.castMembers=new String[castMembers.length];for(int i=0;i<castMembers.length;++i){this.castMembers[i] = castMembers[i];if(castMembers[i]!=null)this.numCastMembers++;} }// set the number of minutes public void setNumMinutes(int numMinutes) { this.numMinutes = numMinutes; } // set the movie name public void setMovieName(String...

1 import java.util.Random; 2 3 4 5 6- 7 8 9 10 11 12 ▼ import java.util.StringJoiner; public class preLabC { public static MathVector myMethod(int[] testValues) { // Create an object of type "MathVector". // return the Math Vector Object back to the testing script. return VectorObject; 13 14 15 } } ▸ Comments Description The MathVector.java file contains a class (Math Vector). This class allows you to create objects in your program that can contain vectors (a 1D array) and perform actions on those vectors. This is useful for doing math operations like you would in your linear algebra class. Your method should evaluate against two tests. What do you need to do in this exercise? You need to create an "instance" of the MathVector object, VectorObject, in your method. If you do this correctly, your method will accept a 1D array of integers, testValues, feed it into the VectorObject and then return the VectorObject. If you look in the file MathVector.java you'll see that this is one way in...

Question 2. package sortsearchassigncodeex1; import java.util.Scanner; import java.io.*; // // public class Sortsearchassigncodeex1 { // public static void fillArray(Scanner inputFile, int[] arrIn){ int indx = 0; //Complete code { arrIn[indx] = inputFile.nextInt(); indx++; } }

In some cases, a class depends on itself. That is, an object of one class interactswith another object of the same class. To accomplish this, a method of the classmay accept as a parameter an object of the same class.The concat method of the String class is an example of this situation. Themethod is executed through one String object and is passed another String object as a parameter. Here is an example:str3 = str1.concat(str2);The String object executing the method (str1) appends its characters to thoseof the String passed as a parameter (str2). A new String object is returned asa result and stored as str3. Write java code to implement given conditions

The provided file has syntax and/or logical errors. Determine the problem and fix the program.

Consider the following class definitions: public class Thing { public void string_method (String word) { word = word.substring(word. length() - 1); } } System.out.print(word); public class Thing2 extends Thing { public void string_method(String word) { } super.string_method(word); System.out.print(word.substring(0,1)); } The following code segment appears in a class other than Thing or Thing2 Thing2 thing = new Thing2(); thing.string_method("Tacky"); What is printed as a result of running the code segment? TT Index Out of Bounds Error TackyTacky yy yT

Java Language How can I make a test in JUnit for this setter and getter? private String customerId; public String getCustomerId(){ return customerId; } public void setCustomerId(String customerId){ if (customerId.length()<= 4){ this.customerId = customerId; } }

Consider the following class definitions: public class Thing {public void string_method(String word) {word = word.substring(word.length() - 1);System.out.print(word);} }public class Thing2 extends Thing {public void string_method(String word) {super.string_method(word);System.out.print(word.substring(0,1));}} The following code segment appears in a class other than Thing or Thing2 Thing2 thing = new Thing2();thing.string_method("Tacky"); What is printed as a result of running the code segment? Group of answer choices yT yy Index Out of Bounds Error TT TackyTacky

public class Ex08FanTest { public static void main (String[] args){ Ex08Fan fan1= new Ex08Fan(); Ex08Fan fan2= new Ex08Fan(); fan1.setOn(true); fan1.setSpeed(3); fan1.setRadius(10); fan1.setColor("yellow"); fan2.setOn(true); fan2.setSpeed(2); fan2.setRadius(5); fan2.setColor("blue"); fan2.setOn(false); System.out.println("Fan 1:\n" + fan1.toString()); System.out.println("\nFan 2:\n" + fan2.toString()); }}

Please help fast

using System; class TicTacToe { staticint player = 1; staticint choice; staticvoid Print(char[] board) { staticvoid Main(string[] args) { Console.WriteLine(); Console.WriteLine($" {board[0]} | {board[1]} | {board[2]} "); Console.WriteLine($" {board[3]} | {board[4]} | {board[5]} "); Console.WriteLine($" {board[6]} | {board[7]} | {board[8]} "); Console.WriteLine(); char[] board = newchar[9]; for (int i = 0; i < 9; i = i + 1) { board[i] = ' '; if( board[i]== 'O') Console.Write("It is your turn to place an X"); } Print(board); board[4] = 'X'; Print(board); board[0] = 'O'; Print(board); board[3] = 'X'; Print(board); board[5] = 'O'; Print(board); board[6] = 'X'; Print(board); board[2] = 'O'; Print(board); } } } Hello, what can be added to this program to make it compile? just a small simple change

Computer Programming Java Write a method named FirstHalf that receives a String parameter named word and then returns the first half of the string. You are guaranteed as a precondition that word has an even length greater than 1.