java command line errors
I’m new to java and I’m trying to compile and run a web service example from a book. The example uses 3 files. I can create an Eclipse Project and Run it. It works fine this way. From the command line I tried javac TimeServer.java TimeServerImpl.java TimeServerPublisher.java And got no errors This program does not run on the command line returns error: «Could not find the main class» java TimeServerPublisher running using the -classpath option returns the same result. Set classpath does not help either. ie java -classpath . TimeServerPublisher fails as well Most of the online docs specify I need a classpath. I tried everything they suggested. Please Help. Thanks in advance Source: TimeServer.java
package ch01.ts; import javax.jws.WebService; import javax.jws.WebMethod; import javax.jws.soap.SOAPBinding; import javax.jws.soap.SOAPBinding.Style; @WebService @SOAPBinding(style = Style.RPC) // more on this later public interface TimeServer
package ch01.ts; import java.util.Date; import javax.jws.WebService; @WebService(endpointInterface = "ch01.ts.TimeServer") public class TimeServerImpl implements TimeServer < @Override public String getTimeAsString() < return new Date().toString(); >@Override public long getTimeAsElapsed()
package ch01.ts; import javax.xml.ws.Endpoint; public class TimeServerPublisher < public static void main(String[ ] args) < Endpoint.publish("http://127.0.0.1:9876/ts", new TimeServerImpl()); >> How to print all java exceptions on the terminal?
I’ve noticed that whenever an exception is thrown on the terminal, I often get an abbreviate failure trace such as this:
java.lang.NoClassDefFoundError: javafx/application/Application at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(Unknown Source) at java.security.SecureClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.access$100(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.launcher.LauncherHelper.checkAndLoadMain(Unknown Source) Caused by: java.lang.ClassNotFoundException: javafx.application.Application at java.net.URLClassLoader$1.run(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) . 13 more Exception in thread "main" What I want to know is how to print all of the trace, including those . 13 more . EDIT: This post has been identified as a possible duplicate of Print full call stack on printStackTrace()? . I did read the latter but didn’t find an answer to my question, I only found information on why it happens.
Simple Command Line Program throws Exception
This program i had run before but just now it will create problem and st [] doesn’t have to initialize.
Exception in thread «main» java.lang.ArrayIndexOutOfBoundsException: 0 and when i run this programme it immediately terminated it not even wait for Entering String From Command Line.
3 Answers 3
If you are not passing any parameters to the program when you start it then st will be empty. Thus trying to reference the first item in the array will throw a NullPointerException .
Recently also try this as Suggested by Michael Brewer-Davis for (String s: st) < System.out.println(s); >But it doesn’t display Enythig.
One particular difference with C and some other languages is that the program name itself is not one of the arguments, so while a C main function always has at least one argument, a Java main does not.
I assume it is complaining that you have an index out of bound exception which means you are trying to access the String at index 0 when there is no such string.
Two ways you can work this out is to look at the exception carefully (assuming you know what it means) or stepping through the code in a debugger which would make this clearer.
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Print out full error message from java via commandline
I’m currently running an application that can only be run through a program/s commandline which uses java. When I get my error print out, how do I view the full print out? i.e. how do i see the «13 more»
Exception: java.lang.reflect.InvocationTargetException (rethrown as com.comsol.util.exceptions.FlException) Messages: Error running java class - Detail: Error_running_java_class Stack trace: at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at com.comsol.util.application.CsBaseApplication.runExternalClassStat(Unknown Source) at com.comsol.util.application.CsBaseApplication.runExternalClass(Unknown Source) at com.comsol.util.compile.a$a.a(Unknown Source) at com.comsol.util.compile.a$a.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Caused by: java.lang.IndexOutOfBoundsException: Index: 4, Size: 4 at java.util.ArrayList.RangeCheck(Unknown Source) at java.util.ArrayList.get(Unknown Source) at Enviornment.makeNextGen(Enviornment.java:269) at Enviornment.main(Enviornment.java:44) . 13 more Using Command Line input CTRL+D with try catch statements
I’ve tried to use catch(EOFException), and a couple other things, but i’m not sure how to get this to work. Code:
public class Circle < // Student Starter code private double radius; // circle radius /** * Constructor - Create a new circle * @param inRadius radius of the circle */ public Circle(double inRadius ) throws Exception< if(inRadius >0.0) < radius = inRadius; >else throw new ShapeException("ShapeException occurred. "); > /** * Return the radius of the circle * @return radius of the circle */ public double getRadius() < return radius; >/** * set the radius * @param newRadius new radius of the circle */ public void setRadius(double newRadius) throws Exception < if(newRadius >0.0) < radius = newRadius; >else < Exception e = new Exception("ERROR: Radius < 0"); throw e; >> /** * Compute and return the area of the circle * @return the area of the circle */ public double area() < return Math.PI * radius * radius; >/** * Stretches circle size by multiplying * the radius by the factor provided. * @param factor stretch factor */ public void stretchBy(double factor) throws Exception < if(factor >0.0) < radius = radius * factor; >else throw new Exception("ERROR: factor < 0"); >/** * Return a string representation of a circle. * @return a string representing this circle */ public String toString() < return String.format("Circle: %s", getRadius()); >> import java.util.Scanner; import java.util.*; import java.io.*; public class TestCircleC < public static void main(String [] args) < // read a radius of the circle from command line boolean run = true; Scanner scan = new Scanner(System.in); while(run)< try< System.out.printf("Enter a circle radius: "); String sradius = scan.next(); if(sradius.length() double radius = Double.parseDouble(sradius); // Instantiate a Circle object Circle aCircle = new Circle(radius); // Print current status of the circle System.out.println(aCircle); if(radius > 0) < System.exit(0); run = false; >> catch(EOFException eofe) < System.out.print("CTRL+D entered - program terminated"); >catch(InputMismatchException ime) < System.out.println("InputMismatchException occurred. "); >catch(NoSuchElementException nse) < System.out.println("CTRL+D entered- program terminated"); run = false; System.exit(0); >catch(ArrayIndexOutOfBoundsException aie) < System.out.println("ArrayIndexOutOfBoundsException occurred. "); >catch(NumberFormatException nfe) < System.out.println("NumberFormatException occurred. "); >catch(ShapeException se) < System.out.println("Shape Exception Occurred. "); //e.printStackTrace(); >catch(Exception e) < System.out.println("Error: " + e.getMessage()); >> > > So the code produces my output correctly so far, just trying to get it to produce the output with the CTRL+ D input doesn’t want to work for some reason. I’m not allowed to use hasNext with the scanner is the only exception to my work. I’m collecting input through the mac terminal window and I’m looking for the output to resemble this.
Enter a circle radius: CTRL+D entered - program terminated To do. 1. Check if valid input, then terminate loop (x) 2. If Code stopped by Ctrl+d output above information () I’m not sure what I’m supposed to do in order to get the program to print that when the input to the command line terminates the program Thanks in advance ——assignment—- Modify the program to print a promt for the input value and read in the double input value using scanner class. do not test using hasNextInt. Modify program to throw exceptions above When the exception for entering the Control-D occurs, print the message «CTRL+D entered — program terminated» for all other exceptions it is sufficient to print out a message saying what kind of exception occurred.