In main (), you must create a menu loop that does the following: Displays the menu by calling the displayMenu method. This method is in the Driver.java class. Prompts the user for input Takes the appropriate action based on the value that the user entered
Full Answer
How do I display menu options in a while loop?
Your code within the while loop also seems to only print the menu option instead of doing anything. I'd say the best thing to do would be to call the displayMenu () method with displayMenu (); at the beginning of the do loop then finish the loop with }while (!input.equals ("q"))
How do I display the menu in a Java class?
Include accessors and mutators for all implemented attributes. In the Driver.java class, modify the main method. In main (), you must create a menu loop that does the following: Displays the menu by calling the displayMenu method. This method is in the Driver.java class.
What are the outputs of DO-WHILE loop in Java?
So its outputs are as follows. In a menu driven program, generally we have to execute body of menu loop at least once. In this case do-while loop is very helpful to create menu driven program. So the code of menu driven system using do-while loop in Java is following.
How do you repeat a menu in Java?
“how to make a java main menu loop after using a case” Code Answer'simport java. util. Scanner;public class basicCalc {public static void main(String[] args) {// TODO Auto-generated method stub.Scanner input = new Scanner(System. in);boolean mainLoop = true;More items...•
How do you implement a menu in Java?
Create a menu using JMenu class....2.To Select a Menu Item:Create a menu and add menu items to it.Add ActionListener to all menu items.Create a menu bar and add the menu to it.Create a label and display the menu item selected.
How do you get to the main menu in Java?
First, create the JMenuBar object that will hold the menus. Next, construct each menu that will be in the menu bar. In general, a menu is constructed by first creating a JMenu object and then adding JMenuItems to it. After the menus have been created, add them to the menu bar.
How do you create a text based menu in Java?
0:4522:13Text-based Menu Driven Program in Java [Part 1/3] - YouTubeYouTubeStart of suggested clipEnd of suggested clipOkay so the program that I'm gonna write is going to be called menu Java. So I'll start off andMoreOkay so the program that I'm gonna write is going to be called menu Java. So I'll start off and write public class menu. And of course we will need a main method so we'll have public static void main.
How do you program a menu?
0:025:1347 - How to program a menu in c++ - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd it comes up with this menu. That's add a name to a list remove a name from a list change a nameMoreAnd it comes up with this menu. That's add a name to a list remove a name from a list change a name in the list print the list or quit the program so we're basically giving the user.
How do you use menus?
A menu provides a space-saving way to let the user choose one of several options. Other components with which the user can make a one-of-many choice include combo boxes, lists, radio buttons, spinners, and tool bars.
How do I use the menu bar?
Microsoft Windows menu bars In Microsoft Windows, the menu bar is beneath the title bar. The menu bar in Windows may be accessed via keyboard shortcuts. Pressing the Alt and the menu-specific hotkey (which appears as an underlined letter in the menu) activates that menu choice.
How do I create a swing menu?
In order to create menu items in Swing, you need to create new instances of JMenuItem and set different properties for them. You can create menu item with both text and icon. Creates a JMenuItem instance without icon or text. Creates a JMenuItem instance with a given icon.
What is Java GUI?
GUI (Graphical User Interface) in Java is an easy-to-use visual experience builder for Java applications. It is mainly made of graphical components like buttons, labels, windows, etc. through which the user can interact with an application. GUI plays an important role to build easy interfaces for Java applications.
What is menu based program in Java?
The menu-driven program in Java is a program that displays a menu and then takes input from the user to choose an option from the displayed menu. The output is given by the program based on the option selected by the user. This type of program interacts a lot with the user, and hence, it is user-friendly.
What is a while loop in Java?
A while loop in java programming repeatedly executes a target statement as long as a given condition is true. Here, statement (s) may be a single statement or a block of statements. The condition may be any expression, and true is any nonzero value. The loop iterates while the condition is true. When the condition becomes false, ...
What happens if the body of the loop is false?
If it is true, the body of the loop is executed. If it is false, the body of the loop does not execute and the flow of control jumps to the next statement just after the ‘for’ loop. After the body of the ‘for’ loop executes, the flow of control jumps back up to the increment statement.
What is a switch statement?
A switch statement allows a variable to be tested for equality against a list of values. Each value is called a case, and the variable being switched on is checked for each switch case.
What is an if statement?
An if statement consists of a Boolean expression followed by one or more statements. If the Boolean expression evaluates to true, then the block of code inside the ‘if’ statement will be executed.
What is a do while loop?
Do – WHILE Loop. Unlike for and while loops, which test the loop condition at the top of the loop, the do…while loop in programming checks its condition at the bottom of the loop. A do…while loop is similar to a while loop, except the fact that it is guaranteed to execute at least one time. If the condition is true, the flow ...
Does every case need a break?
Not every case needs to contain a break. If no break appears, the flow of control will fall through to subsequent cases until a break is reached. A switch statement can have an optional default case, which must appear at the end of the switch.
Can you have multiple case statements in a switch?
You can have any number of case statements within a switch. Each case is followed by the value to be compared to and a colon. The constant-expression for a case must be the same data type as the variable in the switch, and it must be a constant or a literal.
What is a menu driven program in Java?
A menu driven program displays a list of options to take input from user. User can select and enter options displayed on screen as per his/her choice and can do whatever they want to do.
Which statement is specially used for menu driven program in Java?
Switch statement is used to create menu driven program because switch statement contains cases. Each case contains different functionality.
Menu Driven Program in Java for Calculator
In this example, we will create a simple menu-driven program for calculation purposes of 4 essential math operations Addition, Subtraction, Multiplication, and division.
Menu Driven Program in Java for String Operations
We are taking an example where we have to write a simple menu driven program using Java for string operations. If you want to learn string operations in java then check here.
Menu Driven Program in Java using While Loop
Now we will see how to make menu driven program using while loop in Java language.
What We Did?
We have used while loop whose condition statement always evaluates to true.
Menu Driven Program In Java Using do-while Loop
In a menu driven program, generally we have to execute body of menu loop at least once. In this case do-while loop is very helpful to create menu driven program.
Recommended Answers
I can't see the problem after a quick look. Put lots of print statements into your code so you can see the exact sequence of execution and variable updates that lead to the problem.
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I can't see the problem after a quick look. Put lots of print statements into your code so you can see the exact sequence of execution and variable updates that lead to the problem.