35,618 Topics
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| | Hi, i need to program this algorthim using 2 stack in java, for example to evaluate such a given valid infix expression : (5*3)+(4/(6-2)). i need help, i don't know much about stacks.. Create two empty stacks, one for operands, and one for operators. Read infix expression as a string …  |
| | SELECT * FROM myTable WHERE columnId < 45; while (rs.next(){ result of row1 goes to row1.txt; result of row2 goes to row2.txt; result of row3 goes to row3.txt; result of row4 goes to row4.txt; } |
| | Hello All I am writing this program which: - generates two random numbers -ask user to multiply them -checked users answer to see if its correct. - if not correct, asked the user to guess again I have everything working except the loop that is needed to have the user …  |
| | This is the code that I have so far but does not work. When called, the metod returns a pointer whose first and last points to null. The "given" linked list a linked list that we have to make using the add method from the inherited Linked List class. public … |
| | So I am using processing- similar to Java. I have made a button where I can add more ellipses (max 4) or press a different button to remove ellipses. I also made 4 different sets of keys for each of those ellipses to move. However, they can only move individually … |
 | Hi all, I wonder if you can help me to understand this. I came across the following code: @Override public String toString() { return String.format( "hourly employee: %s\n%s: $%,.2f; %s: %,.2f", super.toString(), "hourly wage", getWage(), "hours worked", getHours() ); } // end method toString I have some problems with the … |
| | # Im trying to input 11 digit numbers but i got an error when parsing from string to int # JLabel lblMobile = new JLabel("Mobile No. :"); add(lblMobile); JTextField txtMobile = new JTextField(""); add(txtMobile); int CUSMobnum = Integer.parseInt(txtMobile.getText()); |
 | Hi, I dont know javascript and i dont have time to learn it coz i have to submitt the dynamic web project which i am making using jsp,servlet, mysql database. I only need help in this part.Please help. I have a checkbox , i want to use three images in …  |
| | Hi All, I'm trying to use jdbc connection with sqlServer 2000. I'm using j2sdk1.4.2. And i have service pack2. I've installed the .jar files mssqlserver.jar, msutil.jar, msbase.jar. I have these jar files in E:\j2sdk1.4.2_04\lib. I'm trying to connect with the following program. [CODE] import java.*; import java.io.*; public class Connect{ …  |
| | I would like to create an incremented variable by how many passes I go through my for loop. This is what I was thinking. I would like my variable to total with the pass number at the end. So the first pass would be total0, followed by total1, total2, total3, … |
| | Hi, I have a jsp called scan.jsp. It contains struts tags like <html:hidden />, <html :text> etc. Now I would like to parse all the tags. Is it possible to split all the tag separately ? Please give some idea to do. |
 | Hey.... I am just days away from completing a year-long project and want to convert the netbeans project to a stand-alone java program that can be installed on another system without netbeans. YEAH! Sorry - did my happy dance! the Program has a .main java file and about 15 other … |
| | I am trying to change my database(s) from network to embedded. I believe that the driver is working and has found the database requested with the following code: try { // connect method - embedded driver String dbURL1 = "jdbc:derby:Databases/Armor"; Connection conn1 = DriverManager.getConnection(dbURL1); if (conn1 != null) { System.out.println("Connected … |
 | hi all; How compute runtime of a spicifique programm? if i run same programm several time, in same enviroment, is the execution time will be frozen? i need some ideas,suggestions, explanations. Thanks. |
| | Hi there, I'm currently a student in an intro to Java course at the college level. I've been doing well all semester, but I've ran into trouble with our latest lab. It's a bonus lab, so naturally the content wasn't covered in class. After playing around with what I found … |
| | I want to have a changing output in the 2nd textfield that is 'output' in my Action class as I enter input in the 'input'textfield. I don't know why it doesn't give any output... pls help The comboBoxes convertTo---contains "IEEE" and "DEC" while precisions contain "Long", "Single", "Double". Any advice … |
 | i have to calculate the MEDIAN of an unsorted array(i.e,array must be in sorted order before calculation of median).I am a beginner in java.kindly help me with some kinda code,and learn me how to calculate the median in this case?thankx |
 | This is the program we were assigned to do (Project: Emergency Response Class) The North American emergency response service, 9-1-1, connects callers to a local Public Service Answering Point (PSAP). Traditionally, the PSAP would ask the caller for identification information—including the caller’s address, phone number and the nature of the … |
| | if(isource == txtFirstname){ try{ String searchHotelCustomer = "Select * from HotelCustomer where CUSFirstName='"+CUSFirstName+"'"; driver.selectQuery(searchHotelCustomer); ResultSet rsSearch = driver.rs; if(rsSearch.next()){ txtRoomNum.setText(rsSearch.getString("RoomNumber")); } } how do i get int value from text?  |
 | I was trying to install java JRE7 this earlier. I followed the instructions Mike 2000 17 linkedd in another linux thread. In the installation stage of the setup it said to put this into the terminal: sudo add-apt-repository ppa:webupd8team/java sudo apt-get update sudo apt-get install oracle-java7-installer I did that and … |
 | Just like the title says, i would like to to know the code for adding up values of multiple objects. Bonus point if you can suply me with the code to divide those values by 8. |
| | Hi, I'm doing an input validation of a String. The number should have a decimal pt, a whole number and a fraction part. It can have a negative sign (-) but not positive sign(+). This is what I've done but when I write --43.05, it prints false. String n = … |
| | Hello all, I'm working on a simple self-chat program, which will eventually lead into a server/client chat program, but for now I am trying to learn the basics. When I run my applet, when I type something in the textarea, it shows up in the text field just fine, but … |
| | Hi, how i can fix my code to support keyboard input? /* * To change this template, choose Tools | Templates * and open the template in the editor. */ package calculater1; import java.awt.BorderLayout; import java.awt.Color; import java.awt.Font; import java.awt.GridLayout; import java.awt.event.ActionEvent; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; … |
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 | Need help finalizing program, I'm able to display the highest points and during what game but it's not working for the lowest score and game. int max = 1; int min = 1; int highestGame = 1; int lowestGame = 1; Scanner input = new Scanner(System.in); System.out.println("Enter Texan's First 8 … |
| | I would like to print my values in my array. I am filling my values with a string tokenizer that I leave up to the user to fill. When I use this method I get extra values since its initialized to 10. int[] anArray = new int[10]; for (int i … |
 | What I'm attempting to do is read a text document to pass in variables into an arraylist of shape objects that I will use to create shapes. I don't need any help with the actual drawing of the shapes, working with the arraylist, or the initial scanning setup. I thought … |
 | Hello, I have 2 functions that I wrote to show a hidden div, I would love to convert this to jquery but unsure how. Also, I want a function that will allow me to change the onclick function to open and close and show an arrow > and arrow down... … |
| | Sanchez Construction Loan Co. makes loans of up to $100,000 for construction projects. There are two categories of Loans-those to business and those to individual applicants. Write an application that tracks all new construction loans. The application must also calculate the total amount owed at the due date (original loan … |
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