32,204 Topics
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| | Okay, I'm very new to Java as a whole, and I'm just trying to get to grips with it. I'm experimenting with classes, and I'm struggling to get this one thing to work. Basically, I've made a short program which one can make matrices, and all it has at the … |
| |  hey everyone, need some help here im trying to create this(in the picture shown) but the problem im having is when i select the item from the combobox i want to show the price in the text field as shown but im not sure how i would go … |
| | while importing the .ts file into jdk showing the error as "keytool error: java.lang.Exception: Input not an X.509 certificate".So how to resolve this |
| | import java.io.File; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.PrintWriter; import java.util.Scanner; public class Concat { public boolean accept(File file) { //if the file extension is .txt or .java return true, else false if (file.getName().endsWith(".txt")||file.getName().endsWith(".java")) { return true; } return false; } public void copy(PrintWriter pw, String inputFile) { File … |
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| | /** * @(#)GeometricObject.java * * GeometricObject application * * @author * @version 1.00 2012/9/10 */ public abstract class GeometricObject { private String color = "white"; public GeometricObject(){ } public GeometricObject(String color){ } public String getColor(){ return color; } public void setColor(String color){ this.color=color; } public String toString(){ return " the … |
| | I need to override String toString method so it woud print my deposits I dont't know how to override it, since in makeDeposit method I pass two variables I'm posting just a saple of my code, I'm not sure if you need the whole code public class Bank { private …  |
 | Hi guys. I am having issues with the output of this program. Can somebody tell me what I have to do to make this work correctly? Here is the code I have so far: import java.util.Scanner; //text scanner to parse primitive types and strings using regular expressions. public class Operations … |
| | public class asterisk { public static void main(String[] args) { int row, col, spc=3, spc1=2, spc2=1, spc3=0; for(row=1;row<=1;row++) { for(col=1;col<=1;col++) { for(spc=spc;spc>0;spc--) { System.out.print(" "); } System.out.print("*"); System.out.println(); { for(spc1=spc1;spc1>0;spc1--) { System.out.print(" "); } System.out.print("**"); System.out.println(); { for(spc2=spc2;spc2>0;spc2--) { System.out.print(" "); } System.out.print("***"); System.out.println(); { for(spc3=spc3;spc3>00;spc3--) { System.out.print(" "); } … |
| | Hi.. I want redirect a frame into next frame. In swing method how to redirect a frame into next frame ? |
 | Hello All, I have a Java program which is using a JOptionPane in it. eg. Are you sure u want to close the application? Yes No When I click with the mouse on the No button it works correctly but if I select the No button using the TAB key … |
| | I want to do this: When I press on a checkbox 'Monday', the program displays the List 'lstMonday' When I press on a checkbox 'Tuesday', the program displays the List'lstTuesday' How can I achieve this? I've tried to do it ut can't:( Thanks in advance |
| | Hello everyone, I have question about how AudioTrack instance should be used for streaming applications. Below my code example and some brief explation about code ... /* some work before */ InputStream in = client.getInputStream(); AudioTrack output_stream = new AudioTrack(AudioManager.STREAM_MUSIC, 8000, AudioFormat.CHANNEL_CONFIGURATION_MONO, AudioFormat.ENCODING_PCM_8BIT, 8192, AudioTrack.MODE_STREAM); byte[] buffer = new byte[8192]; … |
| | hy!!!!i am trying to write a java code that returns the majority element in an array and -1 if not!!this is what i came with public class Majority{ public static int arrMajority1(int A[]){ int n = A.length; int c = 1; for(int i=0;i>A.length;i++){ for(int j=i+1;j<A.length;j++) if (A[i]==A[j]) c=c+1; if (c>(A.length/2)){ …  |
| | I'm trying to use limesurvey but cannot get the slider as i would like it. Here is a link to the surveyquestion: http://adam.synology.me/limesurvey/index.php/survey/index/sid/164171/newtest/Y/lang/sv I want the images to change according to the value of the sliders. With a regular html form i had this to take care of it: <script … |
 | Hello All, this is my first post, so bear with me... My problem is with the following code. I have a simple menu setup to do some number conversions, and everything compiles properly. When i run the code, i end up with the Java VM (in bluej) just running endlessly, … |
| | how can we create accounting vouchers use in departmental store for selling products through jswing in java programming..?? |
| | Hello, I am currently working on a project and I am stuck at the moment. Basically I have a few JToggles buttons, a jbutton and a text box. When the user select a jToggle button, write some text in the text box and clicks on the Jbutton, the text on … |
| | Javascript is a object oriented programming language.It is a flexible language.This loosely programming language has its own built-in datatypes.It offers three primary data types,two special data types and two composite data types. -> The primary data types are :- (1) Boolean (2) Number (3) String -> The special data types … |
| | /*Ok I have code that's behaving unexpectedly The following program is supposed to print prime numbers for n1=100,n2=1000,n3=10000 and n4=100000 except that for n1=100, it prints the squares of primes less than 10. I can implement this same program in c++ and wouldn't get such output. I need another pair … |
| | 1.Suppose a method is declared as: public static void f (double d, int n) { ....; } Which one of the follow method invocations would compile with no errors? Select one: a. f(2.5, 3.5); b. f(2, 3); c. f(2.5); d. f(3); I chose b 2.Each of the following pieces of … |
| | Hello everyone. I am starting a class that utilizes Java for software design. I have no previous java experience, although I have taken c++ prior to this and appreciate all the help I have received in the past. I also would like to thank everyone in advance for all your … |
 | any one help me in completing my program on FLAMES game i am not getting how to complete it please help me |
| | Hi friends, I want to create an auto-evaluator for java.. If I submit java program, it has to run and show the output or exceptions(if so).. I tried in some simple ways, it doesnt works out. please give some suggestions how to start and progress... Thanks in advance... |
| | I wrote a server class and a client class. again i wrote 4 different JFrame class which were connected with each other and some Puzzle game codes were written on this classes. I want to add those classes with the server. and want to play those games from the client. … |
| | I have this code: static String format(String number, int decimalLength) { char[] decimal; System.out.println(number); String[] formatA = number.split("."); System.out.println(formatA.length); StringBuilder cents = new StringBuilder(""); int dollars = 0; dollars = Integer.parseInt(formatA[0]); decimal = formatA[1].toCharArray(); for (int i = 0; i < decimal.length; i++) { if (i < decimalLength) { cents.append(decimal[i]); … |
| | I just completed one JAVA course. I used NetBeans. I ran into a friend recently who told me about Eclipse. In my next class I had to write a program with a GUI application. Which IDE do you prefer? Why? |
| | Hi, I'm doing a study planner in java. I'm doing a simple login system. For every user who registers a text file is created holding all of the information inputted during registration. This is the code of a method which the program uses to login the user: public void loginUser(){ … |
| | Why does first two eg give true when a check done on them using if(x==y) but 3rd and 4th case give false? eg1: `String x = "Hello", y="Hello" ` eg2: `String x = "Hello";` `String y= "Hello";` eg3: `String x="Hello";` `String y = new String("Hello");` eg4: `String x = new … |
 | Hi every one!! I need help to match user data from database inorder to log in to admin panel. Here is what I am trying. it works ok but it is giving dialog box containing text "Sorry! You have no access to Database" here is the code. Please help String … |
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