21. What exactly is JNI ? Having fun with JNI we could telephone call characteristics which are printed in almost every other languages from Java. Following the are its advantages and disadvantages: Advantages: We wish to use your existing collection which had been previously written in other vocabulary. We want to call Windows API mode. In the interests of performance price. We want to phone call API reason for specific servers product which is during c or c++ of coffee visitors.
23. What’s JFC ? Java Basis Categories is: Fundamental AWT step one.step 1 Accessibility user interface Tiny parts: which are software section that don’t subclass a preexisting AWT software function. They do not play with indigenous software issues just like the available with the latest underlying windowing program. uberhorny-app Java appearance and feel Service having local feel and look Characteristics instance Java2D and Pull and you may Get rid of
24. What exactly is Difference in AWT and you may Swing ? Swing will bring a richer set of elements than AWT. He is 100% Java-mainly based. AWT while doing so was created for the attitude when a component or capability of a component were not offered on one program, it wouldn’t be on one system. As a result of the fellow-established nature from AWT, what might run you to implementation will most likely not run several other, while the fellow-consolidation is almost certainly not as strong. There are numerous other positive points to Move more AWT: Swing will bring both more areas and you will extra features to AWT-replacement for areas Swing elements can alter their looks in accordance with the most recent „look and feel“ library that is being used. Move components follow the Design-View-Controller (MVC) paradigm, for example provide a much more versatile UI. Move brings „extras“ getting parts, such as: Symbols to your of a lot areas Attractive limits to possess section Device strategies for components Swing portion try smaller (shorter financial support intense than simply AWT) Swing provides built-into the twice buffering Move brings paint debugging support having after you build your own elements Swing also offers a number of disadvantages: It will require Java 2 otherwise a different Jar document When you are not as mindful when programming, it may be more sluggish than simply AWT (all of the components is taken) Move section that look such local section may well not act just for example local elements
twenty five. Given notepad/Ie or other situation given that procedure, What will happen if you begin notepad or Internet explorer 3 x? In which step 3 procedure is actually come or step 3 threads are come ? step 3 separate procedure try become.
Hard to debug runtime error in the indigenous password
twenty six. How does bond synchronisation occurs in to the a display ? [Question much less clear in my opinion ] Brand new JVM spends locks with checks. A display screen is largely a protector in that they watches more than a sequence away from code, making certain one bond immediately performs the code. For each display was regarding the an item site. When a bond finds the first tuition inside a great take off out-of code it will receive a great lock toward referenced target. This new thread isn’t allowed to perform the fresh new password up until they receives new lock. After it has got acquired the latest secure, the newest bond comes into this new take off out of safe password. In the event that thread will leave the latest stop, it doesn’t matter what they actually leaves the fresh new cut off, they launches the new secure on related target.
This is why he could be less strict than standard AWT parts
twenty seven. How will you name a keen Applet having fun with a coffee Program mode ? Such as this: document.appletName.methodCall(. ) Doesn’t work that have Web browser no matter if
28. Could there be one mark into the HTML to help you publish and you can down load data files ? I am not saying familiar with HTML tags to greatly help me personally publish a file, we might certianly need some host front side scripting in order to procedure that. We could indeed fool around with HTML to incorporate a grab connect since follows: code: Follow this link to help you install