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Java Discussion Thread
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Views: 658

Nov 2nd, 2009

simple non gui menu

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Hi All,

Im attempting to make a simple java menu system. the psueo code is as follows

1. user is presented with menu
2. selection is made
3. that action is ran, i.e make a new user (i have this code seperate, which works)
4. the user is returned to the main menu.

what is actually happening is it keeps ending. I tried using a do while, but i cant seem to get my head around it.

Java Syntax (Toggle Plain Text)
/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
 
package week7;
//import java.io.*;
//import java.io.IOException;
import java.util.Scanner;
/**
 *
 * @author Administrator
 */
public class whileDoTest {
 
    @SuppressWarnings("empty-statement")
    public static void main (String[]arguments)
    {
 
        int menuSelect = 0;
       if (menuSelect ==0){
            System.out.println("Please make your selection");
            System.out.println("");
            System.out.println("(1) - New book     :     (2) - New user     :     (3) - New Load");
            Scanner scan = new Scanner(System.in);
            menuSelect = scan.nextInt();
       }else{
            switch (menuSelect)
            {
                case 1:
                   if(menuSelect == 1) {
                    System.out.println("Selection 1");
                    System.out.println("(1) - Main Menu");
 
                    break;
                   }menuSelect = 0;
                case 2:
                    if(menuSelect ==2) {
                    System.out.println("Selection 2");
                    break;
                    }
                case 3:
                    if (menuSelect ==3){
                    System.out.println("Selection 3");
                    break;
                    }
 
 
            }
 
            }
    }
}
/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package week7;
//import java.io.*;
//import java.io.IOException;
import java.util.Scanner;
/**
 *
 * @author Administrator
 */
public class whileDoTest {

    @SuppressWarnings("empty-statement")
    public static void main (String[]arguments)
    {

        int menuSelect = 0;
       if (menuSelect ==0){
            System.out.println("Please make your selection");
            System.out.println("");
            System.out.println("(1) - New book     :     (2) - New user     :     (3) - New Load");
            Scanner scan = new Scanner(System.in);
            menuSelect = scan.nextInt();
       }else{
            switch (menuSelect)
            {
                case 1:
                   if(menuSelect == 1) {
                    System.out.println("Selection 1");
                    System.out.println("(1) - Main Menu");
                    
                    break;
                   }menuSelect = 0;
                case 2:
                    if(menuSelect ==2) {
                    System.out.println("Selection 2");
                    break;
                    }
                case 3:
                    if (menuSelect ==3){
                    System.out.println("Selection 3");
                    break;
                    }
                   

            }
            
            }
    }
}

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whiteyoh

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Nov 2nd, 2009

Re: simple non gui menu

i have amended the code as follows, but i get an error when i want to return the value back to 0.

Java Syntax (Toggle Plain Text)
/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
 
package week7;
//import java.io.*;
//import java.io.IOException;
import java.util.Scanner;
/**
 *
 * @author Administrator
 */
public class whileDoTest {
 
    @SuppressWarnings("empty-statement")
    public static void main (String[]arguments)
    {
 
 
 
            System.out.println("Please make your selection");
            System.out.println("");
            System.out.println("(1) - New book     :     (2) - New user     :     (3) - New Load");
            Scanner scan = new Scanner(System.in);
            int menuSelect = scan.nextInt();
 
           // switch (menuSelect)
 
            do{
 
 
                    System.out.println("Selection 1");
                    System.out.println("(1) - Main Menu");
                    menuSelect ==0;
                   }while (menuSelect==1);
 
           do{
                    if(menuSelect ==2) {
                    System.out.println("Selection 2");
                    }while (menuSelect==2);
           do{
                    System.out.println("Selection 3");
                    }
                    while (menuSelect ==3);
/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package week7;
//import java.io.*;
//import java.io.IOException;
import java.util.Scanner;
/**
 *
 * @author Administrator
 */
public class whileDoTest {

    @SuppressWarnings("empty-statement")
    public static void main (String[]arguments)
    {

        
       
            System.out.println("Please make your selection");
            System.out.println("");
            System.out.println("(1) - New book     :     (2) - New user     :     (3) - New Load");
            Scanner scan = new Scanner(System.in);
            int menuSelect = scan.nextInt();
      
           // switch (menuSelect)

            do{
               
                  
                    System.out.println("Selection 1");
                    System.out.println("(1) - Main Menu");
                    menuSelect ==0;
                   }while (menuSelect==1);
            
           do{
                    if(menuSelect ==2) {
                    System.out.println("Selection 2");
                    }while (menuSelect==2);
           do{
                    System.out.println("Selection 3");
                    }
                    while (menuSelect ==3);

whiteyoh

Reputation Points: 15

Solved Threads: 15

Posting Pro in Training

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Nov 2nd, 2009

Re: simple non gui menu

whiteyoh, look at static int ConsoleOptionGUI(String s) method http://www.daniweb.com/forums/thread231390.html
Yet you will not always write all the code in the main method.

quuba

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Solved Threads: 106

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since Nov 2008

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Nov 2nd, 2009

Re: simple non gui menu

Hi,

Handy link!

I have managed to get it working by using an "if" inside the do.

Ive also split down the code to sub classes.

whiteyoh

Reputation Points: 15

Solved Threads: 15

Posting Pro in Training

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since Jun 2009

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