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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
If you have a 55 in a class and you get an 78 on your final test will you pass the class?
That would depend on how much of the grade the final counted for.
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Well sometimes test scores are 30% or 40%, but the real terror is that in high school your science class will give you a grading policy that test scores are 70% of your grade, but I never fail a science test so far. Last year I fail tons of tests.
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At my school campus, usually the report card tells your grade. If the grade is below 70, you get held back. On the big test, (the state test) there are conditions that affect your grade and if you have, say, 20 mistakes, then you wouldn't be commended and could be held back for that reason too.
How you make shared and synchronized variable in java thread?
A Variable that is shared as well as synchronized cannot be created in Java. These two terms are mutually exclusive and a variable that is synchronized in java cannot be shared and vice versa
The advantages of Java are:
- Simple: Java was designed to be easy to use and is therefore easy to write, compile, debug, and learn than other programming languages. The reason that why Java is much simpler than C++ is because Java uses automatic memory allocation and garbage collection where else C++ requires the programmer to allocate memory and to collect garbage.
- Object-oriented: Java is object-oriented because programming in Java is centered on creating objects, manipulating objects, and making objects work together. This allows you to create modular programs and reusable code.
- Platform-independent: One of the most significant advantages of Java is its ability to move easily from one computer system to another, provided there is a JVM available for the new system.
- Distributed: Distributed computing involves several computers on a network working together. Java is designed to make distributed computing easy with the networking capability that is inherently integrated into it.
- Interpreted and Compiled: An interpreter is needed in order to run Java programs. The programs are compiled into Java Virtual Machine code called bytecode. The bytecode is machine independent and is able to run on any machine that has a Java interpreter. With Java, the program need only be compiled once, and the bytecode generated by the Java compiler can run on any platform. Just-In-Time compilation (to platform-specific machine code) is provided by the JVM to increase performance when possible, giving most of the advantages of both interpreted and compiled languages.
- Secure: Java is one of the first programming languages to consider security as part of its design. The Java language, compiler, interpreter, and runtime environment were each developed with security in mind.
- Robust: Robust means reliable and no programming language can really assure reliability. Java puts a lot of emphasis on early checking for possible errors, as Java compilers are able to detect many problems that would first show up during execution time in other languages. The language itself is also designed to avoid many of the common coding errors that C/C++ programmers make.
- Multithreaded: Multithreaded is the capability for a program to perform several tasks simultaneously within a program. In Java, multithreaded programming has been smoothly integrated into it, while in other languages, operating system-specific procedures have to be called in order to enable multithreading. Multithreading is a necessity in visual and network programming.
- High Performance: despite all the negative press Java has gotten over the years for being slow, this is only part of the story. Java suffers from having a large JVM and runtime; while there are techniques that can minimize this issue, load time will always be a deficiency of Java's. However, once the programming is running, the performance of Java is at least as good as C++. In addition, moving a Java program between different processors gives a significantly larger boost to the Java program's performance than moving a similar C or C++ applications. This is because the C/C++ application was compiled to work on (and optimized for) a specific CPU. When moved onto the later CPU, the C/C++ program will not take advantage of any of the newer features of that CPU, and will require non-trivial source changes (and a recompilation) to do so. The JVM, on the other hand, is under continual development, so for a Java program, when it's moved to a new CPU platform, can immediately take advantage of all the new CPU features if the JVM installed knows about them. The end result is that a Java program "ages" better than a C/C++ one in terms of performance - that is, as the hardware underneath the program is continually upgraded, Java sees a larger percentage performance increase than either C/C++ program does.
- Flexible: one of the largest advantages of Java is the size of the standard library set. Java comes with a huge array of pre-written libraries, which greatly speed development time, as these libraries are immediately available for use (and have already been debugged). This is the Java "ecosystem"; it makes programmers much more efficient, since most of their time can be spent on writing the unique logic of the program, and just using the library set to perform standard functionality. Java has also attracted a huge amount of 3rd-party library work, so the possibility of finding a library which already does (and, likely does better than that developer could write it) a particular functionality is quite high. Overall, this means Java is more flexible and faster to write a program in than most other languages.
What is difference between struct variable and class object?
structure variable can access the variable
but class object can access the function also
What are the four types of J2EE modules?
According to my aspect, There r Three types of modules in J2EE. They Web server module, Servlet Module, Jsp Module. I don't the fourth one. Can any one help?
What is the difference between net contribution to net profit?
net contribution is contribution from customers while net profit is from all expenses deducted
To effectively meet the needs of both high and low achievers, the teacher can implement differentiated instruction by tailoring lessons to various skill levels and learning styles. Utilizing formative assessments will help identify individual student needs, enabling targeted support and extension activities. Additionally, incorporating flexible grouping allows students to collaborate with peers at varying levels, fostering peer learning and engagement. Finally, offering enrichment opportunities and additional resources for advanced learners can ensure that all students are challenged appropriately.
If you have enabled the Java Console in the Java Control Panel but are still not seeing the console when running your Java program, there are a few possible reasons for this issue. Firstly, ensure that your Java program is actually printing output to the console using System.out.println() statements. Additionally, check if your program is running in an environment that supports console output, such as a terminal or command prompt. Finally, make sure that your program is not terminating too quickly before you can see the console output, as this can sometimes give the appearance of no console being available.
basic unit of C is structure like procedure ,syntax's, error's compiler etc
Can you download java software in onida g646?
The Onida G646 is a feature phone that typically does not support the installation of Java software or applications like a smartphone would. Feature phones generally have limited functionality and do not allow for downloading or running third-party applications. If you're looking to use Java-based applications, you'll need a device that supports Java ME or a smartphone capable of running such software.
When programmers need to create several different examples of a class each is known as an object?
Yes. A class is simply the definition of a user-defined type, much like int and char are definitions of primitive types, whereas an object is a specific named instance of a class type, just as a named int or char variable is an instance of a primitive type.
Is it possible for the class boundaries of an interval to be the same as its class limits?
Yes, the class boundaries of an interval can be the same as its class limits when the class limits are defined in a way that does not include any overlap. For example, if the class limits are set as 10-20, the class boundaries can also be defined as 10 and 20 without any decimal values in between. However, typically, class boundaries are often adjusted to avoid ambiguity, especially when dealing with continuous data.
What is the pharmacological class of Glyburide?
Glyburide belongs to the pharmacological class of sulfonylureas, which are oral hypoglycemic agents used to manage type 2 diabetes. It works by stimulating the pancreas to release more insulin, thereby lowering blood glucose levels. Additionally, it enhances the sensitivity of peripheral tissues to insulin.
EN61326 Class A is a standard that specifies the electromagnetic compatibility (EMC) requirements for electrical equipment used in industrial environments. It ensures that devices can operate without causing or being affected by electromagnetic interference, thereby maintaining performance and safety. Class A equipment is intended for use in industrial settings where higher levels of electromagnetic emissions are expected compared to Class B, which is designed for residential use. Compliance with this standard is essential for manufacturers to ensure their products meet regulatory requirements and can be safely used in industrial applications.
What is the result of a search for the string tank thread?
The result of a search for the string "tank thread" would typically yield various references related to threaded connections used in tanks, such as plumbing, industrial tanks, or military applications. It may include articles, product listings, and forums discussing the specifications and applications of tank threads. Additionally, the search could return information on standards related to tank thread types, such as NPT (National Pipe Thread) or other relevant threading systems.
What method of cultural diffusion seems to have affected sumatra and java?
The method of cultural diffusion that significantly affected Sumatra and Java is trade, particularly through maritime routes. Ancient trade networks facilitated the exchange of goods, ideas, and cultural practices between these islands and other regions, such as India, China, and the Middle East. This interaction led to the spread of religions like Hinduism and Buddhism, as well as the introduction of new agricultural techniques and artistic influences. Additionally, the establishment of ports and trading cities further accelerated cultural exchanges in these areas.
Why are mechanical decontamination methods preferred over manual disinfection methods?
Mechanical decontamination methods are preferred over manual disinfection methods because they provide more consistent and thorough cleaning results. Automated systems, such as pressure washers or ultrasonic cleaners, can reach difficult areas and remove contaminants more effectively than manual scrubbing. Additionally, mechanical methods reduce the risk of human error and exposure to hazardous substances, improving safety for operators. Overall, these methods enhance efficiency and ensure a higher level of sanitation.
How do you write a java program that displays two tables side by side?
class table
{
public void sMethod()
{
for(int a=1;a<=10;a++)
int t=a+1;
System.out.println(t);
}
}
How could a program use a class Scanner without importing it in java programming?
You can use the full name of the class. In your case example: java.util.Scanner scanner = new java.util.Scanner(System.in);
What of these allowed many threads to be spun at one time?
The invention of the spinning jenny in the late 18th century significantly allowed many threads to be spun simultaneously. This multi-spindle spinning frame, developed by James Hargreaves, enabled one worker to operate multiple spindles at once, greatly increasing the efficiency of cotton production. This innovation played a crucial role in the Industrial Revolution, transforming the textile industry and leading to a surge in fabric production.
What is the name of the inbox file name and the address file name?
The inbox file name is typically referred to as "inbox" or "inbox.db," while the address file name is often called "contacts" or "addressbook.db." These names can vary based on the email or contact management system in use, but they generally follow this naming convention. Always check the specific application’s documentation for exact file names.
