32,199 Topics
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| | When i create a JTable like the code shown below: [ICODE][B]String[] columnNames = {"First Name", "Last Name", "Sport", "# of Years"}; Object[][] data = { {"", "", new Integer(5),""}, {"", "", new Integer(5),""}, {"", "", new Integer(5),""}, {"", "", new Integer(5),""}, {"", "", new Integer(5),""}, }; JTable table=new JTable(data,columnNames); table.doLayout() …  |
| | The following code compiles, but I don't have any documentation on how to use the "enum" structure. I cant find any info on it in my books or Sun's language documentation... class Test { enum eone { Plus { int operate(int x) { return ++x;} }, Minus { int operate(int …  |
| | I'm trying to read in the whole file at once. If this code ever fails, my whole project will fail. I'm using the following: byte[] theFile = new byte[input2.available()]; then, input2.read(theFile); The API says something about blocking. What exactly is blocking, when will it happen, and how will it affect … |
| | Hi can any one send me the code for receving sms through gateway using java program. first i want recevie the sms from mobile through gateway and the i want to send sms to mobile through gateway..plz send me the sample code to achieve this.. Thanks in advance..  |
 | I created a GUI. with a bunch of classes (that extended JPanel) and one that extends JFrame and now I can't figure out how to transfer data between them. lets say I have a public variable set in the JFrame class and a get method like the one below: [CODE=java]public … |
| | Two-dimensional Arrays. My question is based on this info did i code the right ? if not then let me know where did i made mistake? Input Data File here : 88 90 94 102 111 122 134 75 77 80 86 94 103 113 80 83 85 94 100 … |
| | I already added the path of my installed java, but the problem is I cannot compile my codes. here is my path. . %SystemRoot%\system32;%SystemRoot%;C:\Program Files\Java\jdk1.6.0_10 and then this is what happens when I compile. . Microsoft Windows XP [Version 5.1.2600] (C) Copyright 1985-2001 Microsoft Corp. C:\Documents and Settings\Carlo>e: E:\>cd nerd's … |
| | Hi I have to make a program to parse html document and check for broken links. I did the first part and now wondering is there a method or class that checks if the link is valid?if not I assumed I can construst a method myself, like get the response … |
| | i want the code in JAVA for the program [COLOR="Red"]"To find the shortest path using the fuzzy logic"[/COLOR] |
| | I am having trouble getting output from this program. The objective of the program is to allow the user to enter 5 scores and then it is supposed to calculate the mean and rearrange the data set from highest to lowest. I am supposed to run it through the AverageDriver …  |
 | I have this method : public void ExecuteSQL(String SQL) { Koneksi getCn = new Koneksi(); Connection cnExecute = null; try { cnExecute = getCn.getConnection(); int rowNgefek = 0; Statement stExecute = cnExecute.createStatement(); cnExecute.setAutoCommit(true); stExecute.executeUpdate(SQL, rowNgefek); cnExecute.commit(); closingConnection (cnExecute,stExecute); } catch (SQLException e) { System.out.println(e.toString()); } } If insert/delete/update raise error, … |
| | Alsalamu Alikum, So, It's my first time to study and work on recursion functions, and it was said in the lecture that it is better than the iterative function because [QUOTE]they are shorter, more elegant, more readable, naturally developing and it's code is easier to understand.It comes with more cost … |
| | Hey folks, I am working on a getBalance method that retrieves a balance from a CSV file. I keep getting: [ICODE][COLOR="Red"]java.lang.NullPointerException at java.util.StringTokenizer.<init>(StringTokenizer.java:182) at java.util.StringTokenizer.<init>(StringTokenizer.java:204) at atmEngine.getBalance(atmEngine.java:100) at atmEngine.<init>(atmEngine.java:81) at Launcher.main(Launcher.java:12)[/COLOR] [/ICODE] I can't figure this one out! I threw in some console print outs to make sure it was … |
| | Hey guys, I am working on my final project, and I was wondering, I am designing the GUI and if you look at the buttons I want the green and red buttons to appear 3D like the rest of them but with a colour overlay is it possible to do … |
| | [quote] My code asks a user for a password. To properly validate the user's entry, it must include the following requirements: 1)have a length of 5 2)have an uppercase character 3)have a lowercase character 4)have a digit My loop only works for the lowercase and length of 5 requirements. Can … |
| | Hi is there a way of getting a file creation Date for a file class object? I am trying to do so on a mac. Many thanks |
| | I have a tab delimilated txt file. how can i read only the second part of the file. ex 10.0.0.0 hostname date i want to read in the hostname only what function can i use to do this? |
| | OK, I've been reading a lot online and I think I can't do this, but I'm really hoping someone has a clever workaround. What I have is a bunch of classes with Color attributes. I'm also storing the red, green, blue, alpha values as integer attributes in those classes because … |
| | Student database creating a program that will be used to manipulate a student database. This portion of the database will keep track of student data to include the students name(first, middle, last), date-of-birth, the student's id number, the student's major, and the student's GPA.Based arrays and objects,use 2 parallel arrays … |
| | How can i code in java using Two-dimensional Arrays Method to input data from the data file Method to display the table (Please align columns, but no need to use borders, line separators, etc.) Method to compute the average of each row and display it Method to compute the average … |
| | we would like to build a system in java ( set of classes ) to manage and handle text files . the required software uses the predefined java streams (FileReader, FileWriter,...) and allows creating and opening of new text files as well as writing and reading.In plus, it allows the … |
| | I had to write a triangle code enabeling it make some functions and including constructors inside..based on using the class Point(i atached the description file of it here and the Point.class itself)..I can't write the " public static void main () " in my code cause it screams errors to … |
| | Hii Folks , Sorry For this Long Question, Problem: I Want to Create 5 check boxes and i want to reorder those components using a GridBagLayout , and it's have a Container called Local_Container,after reordering of those components add to panel, so Now we have a Container(Local_Container with a label … |
| | HI Folks , Any one Here Name The Java Swing Component with "Date and Time Instance"? Thankq Sekhar |
| | Sliding Window Mechanism The sliding window mechanism is used in many protocols at many different layers. The sliding window helps in solving a number of problems. Retransmission of lost or damaged frames (or packets) and flow control problems are just examples of that. The sliding window protocol in its simplest … |
| | i am persuing my engineering.i would like to do a mini project in java.can anyone please suggest some interesting topics and guide me how to start?? |
| | Okay im reading in lines of text e.g "abcdefg" and I need to split the line into an array of characters where each character is stored in its own element so its like [a][b][c][d][e][f][g] I know how to do it with splitting words from poems etc... using something like txtLine.split(" …  |
| | Hi I am working on an incredible project, it is an GUI. I hav used a JLabel to show 10 words but it actually always shows the last one only. I think that i need a timer to make it change but i have already a timer and i cannot … |
| | [CODE]public void generateBits(Node root, int current, int counter){ if (root== null) return; if (root.left == null && root.right == null){ list.add(new HuffCode(root.theChar, current, counter)); } else{ current<<= 1; //move all the bits 1 spot to the left generateBits(root.left, current, counter+1); generateBits(root.right, (current | 1), counter+1); } }[/CODE] Somehow, this method … |
 | Hi, i' having a small problem with panels. i want the panel always to have the same size even when empty. in my program that i'm writting, i can see that the panel doesnt fit all the area where i put it ( i noticed that as i have different … |
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