Answer / kamal

You can catch runtime exceptions in try catch block but
generally runtime exceptions are unchecked exceptions and
are not in control of a candidate to handle

Answer / ravibeli

We can handle runtime exceptions also. But it cost a lot to developer, he has to pay his attention to know exactly which are the list of exceptions can come the execution block.

Example:

public class OrderNotFoundException extends RunTimeException {
pulbic OrderNotFoundException(){
super();
}
pulbic OrderNotFoundException(String msg){
super(msg);
}
}

public Order getOrderDetailById(Long id) throws OrderNotFoundException {
try {
OrderDAO orderDao = new OrderDAO();
Order order = (Order)orderDao.getOrderById(id);
} catch (){
throw new OrderNotFoundException();
}
return order;
}

Answer / manish

You can catch compile time Exception,with using try and
catch or throws keyword,Buti think if u r going to catch
Runtime Exception then no,meaning bcoz Runtime Exception are
unchecked
exception.Means no meaning of try and catch but u can use.

Explain the below Statement if(ae.getSource()==b1)

2 Answers   IPSG Systems, TCS,

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How to align components in java swing?

0 Answers  

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Which window contains the swing controls?

0 Answers  

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Is java swing deprecated?

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What is swing components in java?

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What is the use of double buffering in swings?

0 Answers  

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What is pane in swing?

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How are Swing and AWT be differentiated?

3 Answers   Wipro,

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What is difference between swing and awt?

0 Answers  

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I want to use the markerfor playing a video using the jmf.Suppose my video length is of 2 hours.I want it to play ex-15 mintue or 20 mintue and should stop after assigning the time.I am providing my piece of code............please help me.... package com.jha.cdac.lila.praveen; import java.awt.BorderLayout; import java.awt.Component; import java.awt.Container; import java.awt.Dimension; import java.awt.Toolkit; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import java.io.File; import java.net.URL; import javax.media.ControllerAdapter; import javax.media.Manager; /** * * @author vinays */ import javax.media.Player; import javax.media.RealizeCompleteEvent; import javax.media.Time; import javax.swing.JFrame; public class PlayVideo extends javax.swing.JFrame{ Player player; Component center; Component south; // this code is required for playing the video file of mpeg,mp4,mp3,3gp,rm,flv, //wmf,mpv,vob,qt and the asf extension public PlayVideo() { File file = new File("Lesson1.mpg"); try { load(file); // load() } catch (Exception ex) { //Logger.getLogger(LessonNarrative.class.getName ()).log(Level.SEVERE, null, ex); System.out.println("Error while loading file............"+ex); } } //the piece of code given below is used to load the file which user want to play. public void load(final File file) //load the file throws Exception { URL url = file.toURL(); final Container contentPane = getContentPane(); if (player != null) { player.stop(); } // MediaLocator mediaLocator=new MediaLocator (file.toURL()); // DataSource dataSource=Manager.createDataSource (mediaLocator); // player=Manager.createPlayer(url); player = Manager.createRealizedPlayer(url); ControllerAdapter listener = new ControllerAdapter() { @Override public void realizeComplete( RealizeCompleteEvent event) { Component vc = player.getVisualComponent(); player.getVisualComponent(); if (vc != null) { contentPane.add(vc, BorderLayout.CENTER); center = vc; } else { if (center != null) { contentPane.remove(center); contentPane.validate(); } } Component cpc = player.getControlPanelComponent(); if (cpc != null) { contentPane.add(cpc, BorderLayout.SOUTH); south=cpc; } else { if (south != null) { contentPane.remove(south); contentPane.validate(); } } pack(); // //setTitle(file.getName()); //to get the title of Video or Audio File } }; Time tm=new Time(30.4402403); Time tm1=new Time(5.7256199); player.addControllerListener(listener); player.setMediaTime(tm1); player.setStopTime(tm); // player.setMediaTime(new Time(5.0)); //player.setStopTime(new Time(73)); player.realize(); player.start(); } public static void main(String args[]) throws ClassNotFoundException { PlayVideo pv = new PlayVideo(); JFrame f = new JFrame("Lesson1"); f.addWindowListener(new WindowAdapter() { @Override public void windowClosing(WindowEvent e) { System.exit(0); } }); f.getContentPane().add("Center", pv); f.pack(); Dimension screenSize = Toolkit.getDefaultToolkit ().getScreenSize(); int w = 420; int h = 140; pv.setLocation(screenSize.width/2 - w/2, screenSize.height/2 - h/2); pv.setSize(w, h); pv.setVisible(true); }

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Which swing methods are thread-safe?

0 Answers  

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What is the difference between swing and applet?

0 Answers  

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