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Java Programming
The Java programming language was released in 1995 as a core component of the Java platform of Sun Microsystems. It is a general-purpose, class-based, object-oriented language that is widely used in application software and web applications.
5,203 Questions
What spoken language is Java based on?
English.
Please note that the similary between a computer language and a spoken language is very remote. The keywords in Java are English words, or similar to English words, but that's about all, with respect to similarity.
Your Samsung S3500 says Java error content size too large?
This probably means that the Java program you are trying to load is too large to fit in the memory available on your phone.
Yes i can tell, but how do i fix it? because the game im installing is 1 MB and i have 20 MB of free space...
-> Problem is that some Samsung phones have 300KB limit for installing JAVA applications, so solution is to use smaller jar packages.
The solution I found was to compress largest images in jar file. This works if jar is not too big (mine was 349KB->299KB). PNG's and GIF's can be compressed by using less colors, or emptying unnecessary areas (changing size of the image is not recommended because it could affect the application). Also, jad file must be recreated (Jad Wizard can be used)
Extract jar, compress images, add compressed images back to jar, create new jad.
How do to draw UML diagrams of calculator functions addition subtraction division etc?
uml diagram for calculator
Why is Java known as a platform neutral language?
The compiler generates a pseudocode, not targeted to any machine, called bytecode. This can be interpreted by an interpreter program or hardware accelerator on any computer. Java is not the only language that can be compiled to bytecode. For example the GCC compiler system has a backend that emits bytecode, and has already been integrated with the Ada language frontend (and maybe others).
Java is NOT the first language to be implemented platform neutral. In the 1970s UCSD developed a platform neutral Pascal compiler that generated a pseudocode, not targeted to any machine, called P-code. This allowed all computers on campus to run the same operating system, compiler, and programs. All that was needed was a native P-code interpreter program. Apple Pascal on the Apple ][ used this system too, with only minor changes from the original UCSD system so that it ran on Apple's DOS. The UCSD product was available on most computers of the era, but mismanaged costs and the performance penalty of the interpreter program eventually killed it in the middle/late 1980s.
How to get an A in a mean teachers class?
Well, the best thing that you can do is probably ask a lot of questions. Often, that helps the teacher (whether boring or mean or whatever) believe that you actually care about what is going on in the class, and about the subject matter. Ask questions that go deeper than the stuff he or she is talking about, rather than just asking him or her to repeat themselves. If you ask interesting, thoughtful questions, then the teacher might get more excited about the subject and start teaching better. Also, try to show as much respect as possible to the teacher. I'm not saying that all teachers deserve respect... only that it will help when it comes to grading time. Sometimes teachers are mean just because they think that the class is out of control and they aren't sure how to get everyone to calm down and listen. ... Which means that the teacher needs to learn some better strategies, but it also means that you could help out... be vocal in trying to get people to calm down. Prove you are on the teacher's side in trying to establish a place where people can learn. And be prepared for every class. If the teacher asks a question, be ready and willing to answer it. Maybe you will feel like you are brown-nosing or talking too much, and maybe some of the other kids won't like you... but if the teacher is despairing that none of the students are prepared, you being prepared will stand out. If you are completely prepared, if you study hard, if you learn all of the material and try to be on the teacher's side as much as possible... I think that you will have a good chance at an A.
Which Loop avoids check at every iteration?
All loops available in Java (for, while, do-while) have a loop termination condition that would get executed during every iteration of the loop. Without checking the loop condition the loop cannot be terminated and hence avoiding the loop condition check during iteration is not logic and Java does not do it.
What are examples of all-in-one methods?
king cakes, long cakes, coffee cakes, oreo marbel cakes,victoria sponge cakes and akaline rice cakes
How does garbage collection work in Vietnam?
they do it with there hands and dump it into a small hole that the trash is put but,people can accualy Re use it.
How do you fix uncaught exception javalangerror for whatsapp?
You can fix uncaught exception javalangerror for whatsapp by running a parser code on the javalangerror and trying to debug the broken fragment of code.
What is on a union elevator constructor apprentice aptitude test?
I just asked someone from the Local here in Boston and they told me its basically a GED exam...Math and English
it is somthing that animals can adapt to in there environment
Is there any free voip services in India for java enabled phones?
Try RingCentral Mobile VoIP services. It is compatible to all most of smart phone models.
ContentHandler
What is the difference between container and panel?
In Java, a Container is an AWT superclass which simply describes any Component class that can contain other Component objects. A Panel is a specific type of Container.
What does by royal command mean in a TV program Paul Potts by Royal Command?
By command of whomever is the King or Queen of the country. It is from older times, when Kings and Queens ruled, and by their command, anything they asked for was theirs! By royal command has now become a 'coined' phrase and it is a great honour today to be royally commanded to appear in the annual concert performed in England before the Queen of England, Elizabeth.
Use the Multiple Main method C?
There are no methods in C, and you should have only one main function.
Methods are associated with a specific class, and there are no classes in c.
Can anyone suggest topics for 10th ICSE computer projects?
my self is a computer teacher,from my point of view ,some project topics are:
BANKING
ONLINE QUIZ
BILL Preperation
ticket reservation
A SMALL GAME
What is a valid heading for the main program?
For a 'C' program, the main routine must be on of these:
int main (void)
int main (int argc, char ** argv)
int main (int argc, char ** argv, char **envp) /* on some platforms */
Why do you have type data gram socket?
A datagram socket represents a connectionless, non-guaranteed communication protocol. It represents the UDP protocol in the TCP/IP suite.
Contrast this with a stream socket, which represents a connection oriented, guaranteed, communication protocol. It represents the TCP protocol in the TCP/IP suite.
UDP is the underlying protocol for TCP. If you are talking OSI model, UDP is layer 3, and TCP is layer 4.
The int data type requires more memory than the double data type?
No, the int variable uses less memory, and therefore it is preferable to use an int rather than a double where you can.
A boolean variable uses even less memory, but obviously is useful only in limited circumstances.
Can two variables refer to the same object?
Yes. If you simply write:
x = new SomeClass();
y = x;
will make the variable y refer to the same object that variable x is referring to.
Write a c program on blood bank automation system?
Not possible to write one here (too complex). Look for a commercial program to do this.
What do java plums taste like?
It tastes like a watermelon seed inside a coffee cup, wraped in paper mache
Can Array List in java hold different data types?
No, we cant hold different data types in an Array. But using Array List we can hold any data type as a Object. But you need iterate that values as a Object and again you need to convert those values into the different data types accordingly.
Abstraction
Abstraction is simplifying complex reality by modelling classes appropriate to the problem, and working at the most appropriate level of inheritance for a given aspect of the problem.
For example, Lassie the Dog may be treated as a Dog much of the time, a Collie when necessary to access Collie-specific attributes or behaviors, and as an Animal (perhaps the parent class of Dog) when counting Timmy's pets.
Abstraction is also achieved through Composition. For example, a class Car would be made up of an Engine, Gearbox, Steering objects, and many more components. To build the Car class, one does not need to know how the different components work internally, but only how to interface with them, i.e., send messages to them, receive messages from them, and perhaps make the different objects composing the class interact with each other.
More simply,
Abstraction is to represent essential features of a system without getting involved in the complexity of the entire system.
The process of reducing an object to its essence so that only the necessary process of reducing an abject to its essence so that only the necessary element are represented abstraction defines an object in terms of its properties(attributes),behaviour(functionality), and interface.
