I need to reject invalid input and what is best possible way to do so with the given codes:
Class:
import java.awt.Color;
import java.io.File;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Scanner;
[Code] .....
I am designing a program in-order convert Binary to Decimal values with added features:
Rejecting binary values longer than 32 bits
Prompting the user to make multiple entries after completing the binary to decimal conversion of their first entry. I was trying to code this in Nested For Loops, but I don't know if I've really done that.
Here is what i have so far.
public class BinaryToDecimal {
public static void main(String[] args){
Scanner scan = new Scanner(System.in);
String binary;
int decimal=0b10, i, rem;
boolean isBinary = true;
[Code] ....
import java.io.*;
public class MagicSquare
{
public static void main(String[]args)throws IOException
{
BufferedReader in=new BufferedReader (new InputStreamReader(System.in));
System.out.print("Enter a Magic Number: ");
int number=Integer.parseInt(in.readLine());
[Code] ....
//where should i enter a even number that will be outputted "invalid"
//and it only should accept odd numbers
I had to make a program that allows the user to enter 3 sides and it should output "invalid" if it does not make a triangle and if it does make a triangle it calculates the area of the triangle and it doesnt seem to do anything but say "invalid" as the out put.
import java.util.Scanner;
public class MyTriangle {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
boolean valid = true;
double side1, side2, side3, area, A;
[Code] ....
I am using ActiveMq alongwith Spring in my project. I want my queue to be configured to reject the duplicate messages.I tried my level best to do so. I tried googling for the same. but could not get anything.
View Replies View RelatedI'm having some issues getting this code to reject negative numbers. What I'm doing wrong.
import java.util.Random;
import java.util.Scanner;
public class ForLoop
{
public static void main (String [] args) {
Random randomNumber = new Random();
[Code] ....
This is what I have so far..
My project in eclipse..I get the error below when I run MyTagUser.jsp -
HTTP Status 500 - /jsp/MyTagUser.jsp(14,0) Attribute subTitle invalid for tag Header according to TLD
org.apache.jasper.JasperException: /jsp/MyTagUser.jsp(14,0) Attribute subTitle
invalid for tag Header according to TLD
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:40)
org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:407)...et
[code]...
I was trying to set scripting-invalid true , but even after setting it to true I am able to use scripting. This is the web.xml under WEB-INF
<web-app>
<jsp-config>
<jsp-property-group>
<url-pattern>*.jsp</url-pattern>
<scripting-invalid>
true
</scripting-invalid>
</jsp-property-group>
</jsp-config>
</web-app>
And This is the jsp page
<html>
<body>
<!-- Here I am going to use scripting like scriptlet,expression and other element like jsp declaration element -->
<%!int i=0;%>
<%System.out.println("Scriptlet");%>
<%=new String("Expression")%>
</body>
</html>
Why its not working ?
import java.util.HashSet;
import java.util.ArrayList;
public class Graph
{
double [] [] adj;
graph (double [] [] a)
{
adj= new double [a.length][a.length];
for (int i=0;i<a.length;i++)
for (int j=0;j<a.length;j++)
adj[i][j]=a[i][j];
}
C:UserscDesktopGraph.java:: error: invalid method declaration; return type required
graph (double [] [] a)
Well I fixed my invalid path problem
Now it is telling me that my file is not found and it is exactly where I put it and told JCreator to look for it.
this is what I get:
javac: file not found: C:Program FilesJavajdk1.8.0docsMyName.java
when I go manually to the address, it is there but for some reason Jcreator cannot find it.
My code runs correctly when i run the clients one after another without using threads.I am getting this following error when i run my multi-threaded server. When a server accepts a client connection, ClientHandler is the thread that handles that client.Exception in thread "main"
java.io.StreamCorruptedException: invalid stream header at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:737) at java.io.ObjectInputStream.<init>(ObjectInputStream.java:253) at comm.DOMTransfer.<init>(DOMTransfer.java:25) at ClientHandler.<init>(ClientHandler.java:18) at GridInfo.main(GridInfo.java:34)This is where the error occurs:input = new ObjectInputStream(socket.getInputStream());
While doing trial and error got caught in the below scenario.
public class Crypt {
public static void main (String args[])
{
/*all I want is calculate a binary number (ex -: 22 , 34) using decimal base (10n).
*So, I have to convert 2 p into 10n form so I have to find n in terms of p . We have x as the input.
* The formula works as below.
*2p =10n
*p ln (2) =n ln (10)
*n = p [ln(2) / ln(10)]
*2 p = 10 p [ln(2) / ln(10)]
[Code] ....
So today i was trying to compile a simple script that used to work before on Sublime Text 2, an i got the following error;
javac: invalid flag:
Usage: javac <options> <source files>
use -help for a list of possible options
I already know the script works because i didn't change anything since the last time it work, but anyways just in case i tried running a HelloWorld program just to check it out and i got the same error. The i stop trying to compiling the HelloWorld on Sublime so I went to Terminal and i got the same exact error.
I'm trying to establish an SSL connection (using a self-signed certificate). However, I can't seem to get the handshake to work. At the moment server side, I've created the public/private key + signed certificate and then stored them in a KeyStore. I've also stored this signed certificate in a KeyStore (trustStore) client side, so it can compare.
Keys: RSA, Certificate Sig: SHA256withRSA, cipherSuite: TLS_RSA_WITH_AES_128_CBC_SHA
Client Code
// 34393570706261
SSLContext context = SSLContext.getInstance("TLS");
TrustManagerFactory tmf = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
tmf.init(client_trustStore);
context.init(null, tmf.getTrustManagers(), new SecureRandom());
SSLSocketFactory socketFactory = context.getSocketFactory();
conn = (SSLSocket) socketFactory.createSocket("localhost", port);
String[] suites = new String[]{"TLS_RSA_WITH_AES_128_CBC_SHA"};
conn.setEnabledCipherSuites(suites);
[Code] ....
Errors
Quote
javax.net.ssl.SSLHandshakeException: Invalid Padding length: (number)
WARNING: javax.net.ssl.SSLHandshakeException: Received fatal alert: handshake_failure
WARNING: javax.net.ssl.SSLException: Connection has been shutdown:
javax.net.ssl.SSLHandshakeException: Received fatal alert: handshake_failure
import java.util.Scanner;
public class Magic
{
public static void main ( String args[] )
{
Scanner in = new Scanner (System.in);
int[][] square = new int [4][4];
int sqlength = square.length;
int magicValue = sqlength * (sqlength * sqlength + 1) / 2;
[Code] ....
Here is what the output should look like.
Please enter the 4 values for row 0, separated by spaces: 1 2 3 4
Please enter the 4 values for row 1, separated by spaces: 5 6 7 8
Please enter the 4 values for row 2, separated by spaces: 9 10 11 12
Please enter the 4 values for row 3, separated by spaces: 13 14 15 16
Checking square for problems:
DIAG: VALID
ROWS: 0 1 2 3
COLS: 0 1 2 3
RANG: VALID
MAGIC: NO
Using my program it prints
DIAG: VALID
RANG: VALID
MAGIC: NO
I have now slowly moving on the learning Database Connectivity.Found a simple example on one site and tried to execute it, Creating a database, connecting to it and displaying the output.
I am getting trouble with recordset in displaying all the records in the badabase. It displays the very first record correctly but if I try to enclose it in while(rs.next()) loop, it generates an error message saying "Invalid operation at current cursor position".
package database_console;
import java.sql.Statement;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.ResultSet;
[code]....
Make a password rule, and take input of the password from the user and compare the password with your rule, if the user had entered valid password then print the message, password valid, else the password is invalid for (the whatever) reason.
Rules:-
-Length 8-12
-Should have one numeric character
-No Special Character
-Atleast one UPPERCASE letter
PHP Code:
import java.util.*;
import java.lang.String;
import java.lang.Character;
public class PasswordSpence {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.print("Please enter a Password: ");
String password = input.next();
if (isValid(password)) {
[Code] ....
I am having a problem with the JavaFX MediaPlayer playing videos with resolutions greater than 1920x1080px. For testing purpose I downloaded the example from [URL] ... and added the following error-handling:
mediaPlayer.setOnError(new Runnable) {
@Override
public void run() {
System.out.println(mediaPlayer.getError.getMessage());
System.out.println(mediaPlayer.getError.getType());
}
});
When playing a video with a resolution of 1920x1168px, the window became black and I get this console output:
[com.sun.media.jfxmediaimpl.platform.gstreamer.GSTMediaPlayer@5482fb8f] ERROR_MEDIA_INVALID: ERROR_MEDIA_INVALIDUNKNOWN
The video is encoded with h264 and aac (for audio) and is having a resolution of 1920x1168px. The error occurs with each video with a resolution greater than 1920x1080px. Vidoes with a resolution of 1920x1080px or smalle are working fine. The playback of all videos is working with VLC-Player. I tried Java 7_51 and Java 8_5.
I am working on a UI in JavaFX and create several instances of a custom control class. The control consists of a Pane which wraps several other containers, one of which contains a Circle shape.
At one point, I instance this control and access the Circle shape directly. I transform it's center coordinates (which are always {0.0, 0.0} ) to Scene coordinates. The problem is, the transformation always yields coordinates that correspond to the upper left corner of the control's root pane.
In other words, it's as if the Circle is positioned at the upper left corner of the custom control (when, in fact, it's positioned near the lower right corner).
I have other instanced controls already in the scene, and they do not have this issue - converting the Circle's coordinates to scene coordinates works as it should.
It seems obvious that I'm accessing the Circle too soon - that perhaps the scene graph hasn't been fully traversed for the control and the Circle's position within the control's hierarchy hasn't been updated. I've verified that my attempt to access the Circle's center coordinates occurs after the control's initialize() method is executed, so how to ensure the control's scene graph has been fully updated before I try to manipulate the control...
I am facing an issue with my java program, it is returning/storing file name with some junk characters i,e the file name with some '?','=' and '_'. Below is the example of file names.
Ex : abc.doc
ab=?Windows-1252?Q?=c.do?c
=?Windows-1252?Q? (prefixed with space)
=?utf-8?Q? (prefixed with space)
=?iso-8859-1?Q? (prefixed with space)
How can i create a session when i loged in and how can i invalid it when i logout?
View Replies View RelatedI am new to threads, This is a project about 2048 game to be more accurate, and i want this project to run in this thread that i make in main...
My main:
public class Execute {
public static void main(String[] args){
Display d = new Display();
Shell s = new Shell(d);
Model m = new Game2048Model();
View ui = new Game2048View(m.getBoardArr(),d,s);
[Code] ....
And the error is:
Exception in thread "Thread-0" org.eclipse.swt.SWTException: Invalid thread access
at org.eclipse.swt.SWT.error(Unknown Source)
at org.eclipse.swt.SWT.error(Unknown Source)
at org.eclipse.swt.SWT.error(Unknown Source)
at org.eclipse.swt.widgets.Display.error(Unknown Source)
at org.eclipse.swt.widgets.Display.checkDevice(Unknown Source)
at org.eclipse.swt.widgets.Display.readAndDispatch(Unknown Source)
at view.Game2048View.run(Game2048View.java:55) //problem at Run
at java.lang.Thread.run(Unknown Source)
Here is the problem....
@Override
public void run() {
while(!shell.isDisposed()){
if(!display.readAndDispatch()){
display.sleep();
}
}
display.dispose();
}
I have uninstalled JAVA because I needed to download the 64-bit version but no matter WHAT I do I still get the same installation error message "keyset as registered in invalid" and I was downloading it from [URL] .... I will do whatever it takes to fix this!
View Replies View RelatedWrite a program reads in a series of passwords into an array. Store 10 passwords. After creating the password array, have the reader enter a password and see if it is in the array. Fi it is there, print "Valid password" and if it is not there, print "Invalid password."
This is what i have so far
Java Code:
public class passwordMatch
{
public static void main (String [] args){
String [] myArray = new String[10];
myArray[0] = "jasmine22";
myArray[1] = "jackson77";
[Code] .....
It doesn't compile. It gives me error saying .class expected next to String.myArray[]
I am currently working on modules of a java program but am having issues with this module . it gives this error code"syntax error on token '?', invalid primitive type".
This is my code:
import java.awt.*;
import java.awt.event.*;
import java.io.PrintStream;
import java.rmi.Naming;
import java.util.StringTokenizer;
[Code] .....
Getting the following error at line 13.
Multiple markers at this line - void is an invalid type for the variable loadDictionaryFromFile - Syntax error on token ")", ; expected - Syntax error on token "(", ; expected
Line 13 starts public void load....
Code:
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.util.Scanner;
public class PirateTranslator
{
public static void main(String[] args)
[Code] .....