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Hi, I am very new to Java and am using Breezy Swing. I basically need to create an array of JButtons (26 in total) and display them on a form (9 on the top row, 9 in the middle and 8 on the bottom) and I have no idea of …

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import javax.swing.*; public class Pool { public static void main(String args[]) { int input1; int input2; int input3; int Volume; input1=JOptionPane.showInputDialog(null,"Enter the length of the swimming pool:"); input2=JOptionPane.showInputDialog(null,"Enter the width of the pool:"); input3=JOptionPane.showInputDialog(null,"Enter the average depth of the pool:"); Volume=input1*input2*input3; System.out.println("The volume for the pool is: "+ Volume); } …

when you have a variable and you are not using it at all in the code... i.e you forgotten about this particular member well in eclipse there is something that indicates that, that particular member is unused... some exclamation mark or something.... my question is, is there such a feature …

I have an algorithm problem with recursion: i have a route from A to D and it looks like this [CODE] [A, B, C, D][/CODE] the alphabet in the above list is an object of a class, lets call that class Nodes each of this Nodes object they have some …

say i have a Map, a HashMap, and its key is a bunch of Integer and the values is a List of strings. i.e. [CODE] {1=["A", "B", "C", "D"], 2=["A", "B", "E", "D"], 3=["D", "F", "G"]} [/CODE] then i have a Set that stores a list and it looks like …

Hi guys, I have a HashMap, and it stored a bunch of Strings... the key is a String and the value is a Set of String... and it looks something like this [QUOTE]{ D=[E,C], C=[B], E=[B], B=[A] } [/QUOTE] what is the best way to iterate through this map so …

hi all im janaka priyadarsahana, i got this code segment from the sun java tutorial. but cant understand how this for loop works. out.print("File system roots: "); for (File root : File.listRoots()) { out.format("%s ", root); } out.println(); please if anyone can help me...... thank you......

I have the following class as a example to a similar problem im having ... [B]Class Car[/B] code: [CODE] public class Car { private String name; public Car(String name) { this.name = name; } public String getName() { return name; } } [/CODE] [B]Class CreateCarFromList[/B] code: [CODE] public class CreateCarFromList …

How do I go about defining the average and total variables in the following script? Assistance is appreciated... Ben import javax.swing.JOptionPane; class minmax { /** Main Method */ public static void main(String[] args) { final double TOTAL_NUMBERS = 5; //Convert string to double double Average = Double.parseDouble(averageString); //Convert string to …

Hi, How do you go about in creating a direcory folder? I've been playing around with class [B]File [/B]which has the method [B]mkDir()[/B] (no arguments and returns type boolean), which i thought would be the answer to making a directory but apparently not, or perhaps i just dont understand it.

which method in the ResultSet that will return the number of column in a table? I'm not entilry sure but i think its the getFetchSize() However on the API it says that : [QUOTE]"Gives the JDBC driver a hint as to the number of rows that should be fetched from …

a little picture of the site logo appears on the tab of my browser (opera) eg. daniweb has db on the tab. I want to know how to do that. Pls help.

hai, i need some help in developing a simple calculator! i've finished the front-end part using jigloo software but the problem is when i click the first number,that number will appear in the textfield after that when i click the '+' button the textfield is clearing but i'm not able …

Don't know if anyone seen this article yet... [QUOTE] Microsoft has urged users to be wary as three newly discovered bugs leave people open to attack while using the net. [/QUOTE] [URL]http://news.bbc.co.uk/2/hi/technology/4849904.stm[/URL] I think its the more reason not to use IE as your default browser, although at the end …

inside a computer on the motherboard there is a large fan and a small fan. am i right in saying the large one is a processor fan and the small one is a chipset fan?? thanks.

Hi, I'm using your RSS FEED link to get all the news or event that is happening in your forum. however i am only interested in whats happening in the Java forum. Is there a way where i can RSS only the Java forum? I also noticed that one is …