Program: File name: “ TriangleWithLoops.java ” //Define a class named TriangleWithLoops class TriangleWithLoops { //Define main method public static void main(String[] args) { //Declare the variables and initialize the values int n = 7, spaces = 7; //For loop to print a seven-line triangle pattern for(int i = 0;i<n;i++) { for(int k = 0;k<spaces;k++) { //Print the result System.out...

EBK JAVA PROGRAMMING

9th Edition

ISBN: 9781337671385

Author: FARRELL

Publisher: CENGAGE LEARNING - CONSIGNMENT

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Chapter 6, Problem 7PE

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Program:

File name: “TriangleWithLoops.java”

//Define a class named TriangleWithLoops

class TriangleWithLoops

{

    //Define main method

    public static void main(String[] args)

    {

        //Declare the variables and initialize the values

        int n = 7, spaces = 7;

        //For loop to print a seven-line triangle pattern

        for(int i = 0;i<n;i++)

        {

            for(int k = 0;k<spaces;k++)

            {

                //Print the result

                System.out...

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Chapter 6, Problem 6PE

Chapter 6, Problem 8PE

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A Java for loop has the following general form: for(start; test; increment) { statements } in the parentheses after the keyword "for", _____ provides the starting point for the loop, _____tells what to adjust before the next loop iteration, and _____ is a boolean expression that when true, lets the loop to continue and when false, causes the loop to terminate.

• Use a while loop • Use multiple loop controlling conditions • Use a boolean method • Use the increment operator • Extra credit: Reuse earlier code and call two methods from main Details: This assignment will be completed using the Eclipse IDE. Cut and paste your code from Eclipse into the Assignment text window. This is another password program. In this case, your code is simply going to ask for a username and password, and then check the input against four users. The program will give the user three tries to input the correct username-password combination. There will be four acceptable user-password combinations: • alpha-alpha1 • beta-beta1 • gamma-gamma1 • delta - delta1 If the user types in one of the correct username-password combinations, then the program will output: "Login successful." Here are a couple of example runs (but your code needs to work for all four user-password combinations): Username: beta Type your current password: beta1 Login successful. Username: delta Type…

Using a Counter-Controlled whileLoop Summary In this lab, you use a counter-controlled while loop in a Java program provided for you. When completed, the program should print the numbers 0 through 10, along with their values multiplied by 2 and by 10. The data file contains the necessary variable declarations and some output statements. Instructions Ensure the file named Multiply.java is open. Write a counter-controlled while loop that uses the loop control variable to take on the values 0 through 10. Remember to initialize the loop control variable before the program enters the loop. In the body of the loop, multiply the value of the loop control variable by 2 and by 10. Remember to change the value of the loop control variable in the body of the loop. Execute the program by clicking Run. Record the output of this program.

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