I was typing up this program and when I compile it, there aren't any errors, but it won't advance past the second conditional.
Here's the code:
import static java.lang.System.*;
import javax.swing.JOptionPane;
import java.util.*;
public class area51
{
public static void main(String args[])
[Code] ....
The first two answers are 41 and right.
So I am finishing up a GUI that randomly rolls a dice and shows you the dice face from a file that I have on my computer. It compiles fine, but when I open the GUI and press the button "Roll" it gives me errors and does not display the images.
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.border.*;
import java.util.Random;
[code]....
In fact, I'm not yet past that "Hello World" program.I'm following the steps in "Head First: Java" book, and reached that point where one is ready to write his/her 1st Java code. Here's mine:
public class MyFirstApp
{
public static void main (String[] args)
{
System.out.println("I Rule!");
System.out.println("The World!");
}
}
As simple as it should be, and compiles fine producing the correspondent class. But it doesn't run, however, and spits the following execution-time errors:
Exception in thread "main" java.lang.UnsupportedClassVersionError: MyFirstApp : Unsupported major.minor version 51.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:643)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:277)
[code]...
So all the errors in the code is fixed but its now got the wrong output
what I get:
Enter numerator; then denominator.
5
8
5/8
Enter numerator; then denominator.
4
10
4/10
Sum:0/0
it should be:
Enter numerator; then denominator.
5
8
5/8
Enter numerator; then denominator.
4
10
4/10
Sum: 82/80 1.025
Product: 20/80 0.25
Enter numerator; then denominator.
6 0
infinity
here is the code
Fraction.java
public class Fraction { //declares that it's a class that can be intantiated
private int numer; // private intager for numerator
private int denom; // private intager for denominator
[Code] ....
So I'm learning java having been using c#. I based this code off an example from class. It compiles fine with no errors, but I'm getting this:
Which model do you want? + Standard,Electrum,CurveHilted, or Tonfa Standard
Exception in thread "main" java.lang.ClassNotFoundException: Standard
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
[Code] .....
How/where to point the correct class.
package com.company;
import com.sun.java.util.jar.pack.*;
import java.util.Scanner;
class LightSaberFactory {
static LightSaberFactory lsf;
ChooseLightSaberColor saberColor;
[Code] .....
I've been trying this for hours but it's not working. I'm trying to add the sea glass look and feel library to my project but I still get the error:
Exception in thread "main" java.lang.NoClassDefFoundError: List (wrong name: list)
What should I do? I've added the library to "project settings >Required Libraries" and did not forget to check the box. I've also imported the L&F so it can't be that.
I have got a problem when coding a java program to create a calculator with JCreator. How to write codes for decimal point.
Decimal point should not be set to the text more than 1 time until an operator is pressed. How can I use a Boolean value to solve this problem.
how to manage JFrame in JCreator .
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import java.io.*;
import java.util.*;
import java.util.Random;
public class SlotMachine {
//Generates 3 random numbers for slot machine
public static void main(ArrayList<Integer> slotMachine) {
int count = 0;
while (count<3)
[code]....
How do I set the class path, the path, compile and run java programs using jdk and jcreator?
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I am making a program, where the user answers 3 questions and then I add the number of correct answers in to the (int) numberofcorrect variable, then I want to print the results, and no matter how many correct, the program executes first the correct if statement, then the else statement.
Eg: I have 2 correct it will print:
"Grade B, 2 of 3 "
"You failed the test"
Why does it do that? How can I change my code so the else statement dosent print if one of the if statments is allready printed?I want to know how to not execute the else statement, if one of the if statements have allready been executed.Below is my current code for this problem:
if (numberofcorrect == 3){
System.out.println("Grade A, full score");}
if (numberofcorrect == 2){
System.out.println("Grade B, 2 of 3 ");}
if (numberofcorrect ==1) {
System.out.println("Grade C, 1 of 3");}
else {
System.out.println("You failed the test"); }
I want to execute my jsp code to compare two dates after every 10 seconds if user enter date and current sys date are equal it will send the mail to the user automatically. Below is my jsp code
this if condition i want to check the date after every 10 seconds and when two dates are equal it will send the mail using below mail code
if(ExpcReDt.compareTo(dateStr)>0) {
out.println("Expected return date is greater than current date");
}
else if(ExpcReDt.compareTo(dateStr)==0)
[code]....
//Main method
public static void main(String args[])throws IOException{
boolean runProgram = true;
Scanner keyboard = new Scanner(System.in);
//runs program while runProgram is true
while (runProgram){
[code].....
I am able to compile the below program but not able to execute.
public class String {
public static void main(String[] agrs){
System.out.println("Hello String");
}
}
Output Error:
Class String does not have a main method
public class Main {
private static void foo(Integer a) {
System.out.println("Integer");
}
private static void foo(long a) {
System.out.println("long");
[Code] ....
This code prints long. Why is that? How did compiler decided that it likes long version of foo() method the most. If I had to guess I'd pick int... or possibly Integer as they are most similiar to what was passed. But why long?
I am unable to run this java mail code, whats the error!!
public class Class1 {
final String senderEmailID = "from@gmail.com";
final String senderPassword = "password";
final String emailSMTPserver = "smtp.gmail.com";
final String emailServerPort = "465";
String receiverEmailID = null;
[Code] ...
I get an error as this
javax.mail.MessagingException: Could not connect to SMTP host: smtp.gmail.com, port: 465, response: -1
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1949)
at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:654)
at javax.mail.Service.connect(Service.java:317)
[Code] ....
I want to execute and use the Win7 Speech Recognition with Java. How can I open it?
I tried to open it with "Runtime.getRuntime().exec(" ");" but I couldn't find a command to open it. How can I use the speech recognition once I opened it with commands in Java?
Question : How to execute batch file & .exe file using jsp servlet?I am giving input for blast in the FASTA format. After that i wants to make the sequence.FASTA file in my project folder. And I wants to execute batch file with parameters as blastp.exe file, sequence. FASTA file, database files, output file.
There is no problem in the file creation of sequence.FASTA
ERROR IN: the batch file is not execute, So the I am not able to get the output file for display.
ERROR is : java.io.FileNotFoundException: D:vaibhav_workspace.metadata.pluginsorg.eclipse.wst.server.core mp4wtpwebapps oxin-dataoutputprotein.txt (The system cannot find the file specified)
Technologies Used :JSP,Servlet,Process-builder
I have the following code as :
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter out=response.getWriter();
String values=request.getParameter("t1");
ServletContext servletContext = request.getSession().getServletContext();
servletContext = request.getSession().getServletContext();
String path="//sequence.FASTA"; /*file is created in getRealPath()*/
[Code]...
Here the getRealpath() is:
D:workspace.metadata.pluginsorg.eclipse.wst.server.core mp4wtpwebapps oxin-data
My all files in the project folder as toxin-data
There are multiple .CSV files (each file has multiple rows and columns). I need to fetch data from all the files and find MEDIAN of the values for each column and do further calculations. Suppose there are 3 files, i need to find the MEDIAN of column 1 in file1, MEDIAN of column 1 in file2, MEDIAN of column 1 in file3. Below code just fetch data from one file.
package testdatapkg;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
[code]....
I have few queries regarding compiling v/s execution of a java program. Suppose I have a Main Class which is referring to class Test which is present in JarA. Now, at compile time, this jar JarA must be present in classpath/buildpath. So, what actually is the action performed by the compiler by referring to this jar?
Now, at runtime also, this jar should be present to execute the Main class. Is this correct? If yes, then what is the action performed by JRE when it refers to this class at runtime? WOn't all the dependencies be resolved at compile time only?
Any article where it mentions about when the class is loaded into memory?Does it happen before the server starts?
Also does the class needed to be loaded into memory? Can the JVM not just execute the code without storing in memory?
I searched in google. Could not get anything concrete.
How can I time my while loop to executeevery 3 seconds?
Here is my code:
class Info{
public String name;
public String version;
public String arch;
double CPUSpeed;
};
Info info = new Info();
Info[] queue = new Info[100];
[Code]...
I seem to have done it right, but it doesn't work... What is wrong?
In spring there is a Custom Authentication Provider, my question is from a jsf login page how can I execute this provider ?
@Component
public class CustomAuthenticationProvider implements AuthenticationProvider {
@Autowired
private UserService userService;
@Override
public Authentication authenticate(Authentication authentication) throws AuthenticationException {
String username = authentication.getName();
String password = (String) authentication.getCredentials();
[Code] ....