Example usage for java.lang RuntimeException RuntimeException

Introduction

In this page you can find the example usage for java.lang RuntimeException RuntimeException.

Prototype

public RuntimeException(Throwable cause)

Source Link

Document

Constructs a new runtime exception with the specified cause and a detail message of (cause==null ?

Usage

From source file:MainClass.java

public static void main(String args[]) {
    try {/*from  ww  w  . j  a  v  a 2 s . c  o  m*/
        throw new RuntimeException("demo");
    } catch (Exception e) {
    }
}

From source file:Main.java

public static void main(String[] args) {
    Runnable badTask = () -> {
        throw new RuntimeException("Throwing exception  from  task execution...");
    };/*  w w  w  .jav a  2s.co m*/

    ExecutorService exec = Executors.newSingleThreadExecutor();
    exec.execute(badTask);
    exec.shutdown();
}

From source file:Main.java

public static void main(String[] args) {
    Callable<Object> badTask = () -> {
        throw new RuntimeException("Throwing exception from task execution...");
    };//  www.j  a va2  s.co m
    ExecutorService exec = Executors.newSingleThreadExecutor();
    Future submittedTask = exec.submit(badTask);
    try {
        Object result = submittedTask.get();
    } catch (ExecutionException e) {
        System.out.println(e.getMessage());
        System.out.println(e.getCause().getMessage());
    } catch (InterruptedException e) {
        e.printStackTrace();
    }

    exec.shutdown();
}

From source file:CheckVersion.java

public static void main(String[] args) {
    String version = System.getProperty("java.version");
    char minor = version.charAt(2);
    char point = version.charAt(4);
    if (minor < '4' || point < '1')
        throw new RuntimeException("JDK 1.4.1 or higher " + "is required to run the examples in this book.");
    System.out.println("JDK version " + version + " found");
}

From source file:Main.java

public static void main(String[] args) {
    DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");

    ScheduledThreadPoolExecutor scheduledThreadPoolExecutor = new ScheduledThreadPoolExecutor(2);
    scheduledThreadPoolExecutor.scheduleAtFixedRate(() -> {

        throw new RuntimeException(" scheduleAtFixedRate test ScheduledThreadPoolExecutor");
    }, 0, 3000, TimeUnit.MILLISECONDS);

    scheduledThreadPoolExecutor.scheduleAtFixedRate(() -> {

        System.out.println("scheduleAtFixedRate: " + LocalDateTime.now().format(formatter));
    }, 0, 2000, TimeUnit.MILLISECONDS);

    scheduledThreadPoolExecutor.schedule(() -> {

        System.out.println("schedule");
    }, 1, TimeUnit.SECONDS);//from   w  ww .  j  a  v a2s. c  om
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    Runnable myRunnable = new Runnable() {
        @Override/*  www.java2 s .c  o m*/
        public void run() {
            try {
                System.out.println("Start: " + Thread.currentThread().getName());
                Thread.sleep(100);
            } catch (InterruptedException e) {
                throw new RuntimeException(e);
            }
        }
    };
    Thread one = new Thread(myRunnable);
    Thread two = new Thread(myRunnable);
    one.start();
    two.start();

    List<Thread> threads = getThreadsFor(myRunnable);
    for (Thread thread : threads)
        System.out.println("Found: " + thread.getName());
}

From source file:SpecificMethodInfoDemo.java

public static void main(final String[] args) {
    final Method byteValueMeth;
    final Method waitMeth;
    final Method waitDetailMeth;

    try {//  w ww. j  a  v  a2 s  . c  o  m
        byteValueMeth = Number.class.getMethod("byteValue", null);
        waitMeth = Number.class.getMethod("wait", new Class[] {});
        waitDetailMeth = Number.class.getMethod("wait", new Class[] { long.class, int.class });
    } catch (final NoSuchMethodException ex) {
        throw new RuntimeException(ex);
    }

    System.out.println("byteValueMeth = " + byteValueMeth.toString());
    System.out.println("waitMeth = " + waitMeth.toString());
    System.out.println("waitDetailMeth = " + waitDetailMeth.toString());
}

From source file:Main.java

static public void main(String args[]) throws Exception {
    PrintRequestAttributeSet pras = new HashPrintRequestAttributeSet();
    pras.add(new Copies(1));

    PrintService pss[] = PrintServiceLookup.lookupPrintServices(DocFlavor.INPUT_STREAM.GIF, pras);

    if (pss.length == 0)
        throw new RuntimeException("No printer services available.");

    PrintService ps = pss[0];//w ww .  ja  va2 s  . co m
    System.out.println("Printing to " + ps);

    DocPrintJob job = ps.createPrintJob();

    FileInputStream fin = new FileInputStream("YOurImageFileName.PNG");
    Doc doc = new SimpleDoc(fin, DocFlavor.INPUT_STREAM.GIF, null);

    job.print(doc, pras);

    fin.close();
}

From source file:PrintImage.java

static public void main(String args[]) throws Exception {
    PrintRequestAttributeSet pras = new HashPrintRequestAttributeSet();
    pras.add(new Copies(1));
    PrintService pss[] = PrintServiceLookup.lookupPrintServices(DocFlavor.INPUT_STREAM.GIF, pras);
    if (pss.length == 0)
        throw new RuntimeException("No printer services available.");
    PrintService ps = pss[0];//from  w  w w.  j  a  v  a2s  .  c o m
    System.out.println("Printing to " + ps);
    DocPrintJob job = ps.createPrintJob();
    FileInputStream fin = new FileInputStream("YOurImageFileName.PNG");
    Doc doc = new SimpleDoc(fin, DocFlavor.INPUT_STREAM.GIF, null);
    job.print(doc, pras);
    fin.close();
}

From source file:PrintImage.java

static public void main(String args[]) throws Exception {
    try {//from   w w w . ja va 2 s.  c  om
        PrintRequestAttributeSet pras = new HashPrintRequestAttributeSet();
        pras.add(new Copies(1));

        PrintService pss[] = PrintServiceLookup.lookupPrintServices(DocFlavor.INPUT_STREAM.GIF, pras);

        if (pss.length == 0)
            throw new RuntimeException("No printer services available.");

        PrintService ps = pss[0];
        System.out.println("Printing to " + ps);

        DocPrintJob job = ps.createPrintJob();

        FileInputStream fin = new FileInputStream("YOurImageFileName.PNG");
        Doc doc = new SimpleDoc(fin, DocFlavor.INPUT_STREAM.GIF, null);

        job.print(doc, pras);

        fin.close();
    } catch (IOException ie) {
        ie.printStackTrace();
    } catch (PrintException pe) {
        pe.printStackTrace();
    }
}