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How add scroll pane to frame? explain with example?
sivasundararajan
- Nov 20th, 2006
It is "ScrollPaneConstants" and not "ScrollPaneConstant"
priyanka11
- Apr 12th, 2006
JPanel p=new JPanel();int v=ScrollPaneConstant.VERTICAL_SCROLLBAR_ALWAYS;int h=ScrollPaneConstant.HORIZONTAL_SCROLLBAR_ALWAYS;JScrollPane jsp=new JScrollPane(p,v,h);p.add(jsp);
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Which of the following methods are defined on the Graphics class:
A) drawLine(int, int, int, int)B) drawImage(Image, int, int, ImageObserver)C) drawString(String, int, int)D) add(Component);E) setVisible(boolean);F) setLayout(Object);
pallavr
- Jun 30th, 2006
The correct answer is a,b,c :a) drawLine(int x1, int y1, int x2, int y2) b) drawImage(Image img, int x, int y, ImageObserver observer) c) drawString(String str, int x, int y)
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Which of the following statement(s) are true?
A) The default layout manager for an Applet is FlowLayoutB) The default layout manager for an application is FlowLayoutC) A layout manager must be assigned to an Applet before the setSize method is calledD) The FlowLayout manager attempts to honor the preferred size of any components
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Which of the following option(s) doesn’t correctly describe the Applet’s Life Cycle methods?
A) init( ) method - Can be called when an applet is first loaded.B) start( ) method - Can be called each time an applet is started.C) paint( ) method - Can be called when the applet is minimized or refreshed.D) destroy( ) method - Can be called when the browser moves off the applet’s page.Explanation: it is the explanation for stop(), while destroy( ) method - Can be called when the browser is finished...
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You have created a simple Frame and overridden the paint method as follows public void paint(Graphics g){ g.drawString("Dolly",50,10);}What will be the result when you attempt to compile and run the program?
A) The string "Dolly" will be displayed at the centre of the frameB) An error at compilation complaining at the signature of the paint methodC) The lower part of the word Dolly will be seen at the top of the form, with the top hidden.D) The string "Dolly" will be shown at the bottom of the form
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All Applets must import java.applet and java.awt.
A) TrueB) False
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Whatis difference between applet and swing ,is it possible connect database through appletbased gui?
Vijay Kumar
- Sep 26th, 2006
The difference between the applet and swing is as mentioned below:1. Applet belongs to java.awt package and swing belongs to javax.swing.* package.2. Applet is a heavy weight component but swing comes...
Sharad Chandra
- Apr 13th, 2006
Yes it is possibe.You can communicate to databases through applet using Applet-Servlet Communications.What u need is to use URL class to send Query to servlet which interacts with the database and send the Query results back to the applet.
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Which of the following are direct or indirect subclasses of Container? (Select Multiple)
A) FrameB) TextAreaC) MenuBarD) FileDialogE) Applet
ramakrishna Reddy
- Sep 14th, 2006
A,E are the sub classes of container
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All Applets are subclasses of Applet.
A) TrueB) False
pallavr
- Jul 10th, 2006
True.java.awt.Object->java.awt.Component->java.awt.Panel->java.applet.Applet.So all applets are subclasses of applet itself.
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Does any one have generic java code to handle any type of database application? Instead of having sqls, validation, error handling, transaction log, and other coding for every screen, why cant we have generic java clsses and just desing new screens and pass the field values....
rabbi
- Jul 1st, 2006
Actually I don' t understand ur question properly... Anyway, primary reason that generic types and methods (often referred to, simply, as generics) were added to the Java language ? to add compile...
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An application has a frame that uses a Border layout manager. Why is it probably not a good idea to put a vertical scroll bar at North in the frame?
A) The scroll bar’s height would be its preferred height, which is not likely to be enough.B) The scroll bar’s width would be the entire width of the frame, which would be much wider than necessary.C) Both a and b.D) Neither a nor b. There is no problem with the layout as described.
pallavr
- Jun 30th, 2006
The vertical scroll bar is wide and fat and it is not very useful.Option B is correct.
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What class is the top of the AWT event hierarchy?
A) java.awt.AWTEventB) java.awt.EventC) java.util.eventObjectD) javax.swing.ObjectExplanation: The java.awt.AWTEvent class is the highest-level class in the AWT event class hierarchy.
pallavr
- Jun 30th, 2006
This is kind of a dicy question:But in Java the event heirarchy goes like :java.lang.object -> java.util.EventObject -> java.awt.AWTEvent.So the java.util.EventObject is the superclass of all ev...
srikanth.kondapaneni
- Dec 26th, 2005
The class which is at the top of the AWT event hierarchy is java.util.eventObject ie " c".
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What are the features coming with JFC?. (Select Multiple)
A) Pluggable Look-and-FeelB) Accessibility APIC) Java 2D/API(JDK 1.2).D) Drag and Drop Support(JDK 1.2)
pallavr
- Jun 30th, 2006
The JFC -java Foundation classes have five major parts :AWT,SWING,ACCESSIBILITY,JAVA 2D,DRAG & DROP as well.PLAF is included with swing.so answers are all of the above.
srikanth.kondapaneni
- Dec 21st, 2005
The JFC contains accessibility functions,2D drawing libraries,Pluggable look and feel etc so the answer is " A,B,C".
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Which of the following are true?
A) The event-inheritance model has replaced the event-delegation model.B) The event-inheritance model is more efficient than the event-delegation model.C) The event-delegation model uses event listeners to define the methods of event-handling classes.D) The event-delegation model uses the handleEvent( ) method to support event handling.
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Which of the following (is)are true?
A) A Dialog can have a MenuBar.B) MenuItem extends Menu.C) A MenuItem can be added to a Menu.D) A Menu can be added to a Menu.
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Which Font attributes are available through the FontMetrics class? (Select Multiple)
A) ascentB) leadingC) caseD) height
chandru
- Apr 20th, 2006
a
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If a frame uses a Grid layout manager and does not contain any panels, then all the components within the frame are the same width and height.
A) TrueB) False
Mohit Hajela
- Jan 9th, 2006
TRUE:As the Grid Layout distributes the space into equal cells of a grid, and each of the 'cells' will allow th componenet to take the entire space.
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What are invisible componants in swings ? (Select Multiple)
A) Componants which take space in the GUI on the client interface.B) Componants which cannot perform painting operation.C) Componants which can perform painting operation.D) The componants that are visible but no componants can be added in it.
Java Swing Interview Qustions
Ans