Jvm - Study guides, Study notes & Summaries

1. What is the most important feature of Java? Java is a platform independent language. 2. What do you mean by platform independence? Platform independence means that we can write and compile the java code in one platform (eg Windows) and can execute the class in any other supported platform eg (Linux,Solaris,etc). 3. What is a JVM? JVM is Java Virtual Machine which is a run time environment for the compiled java class files. 4. Are JVM's platform independent? JVM's are no...

CSC 1350 Final Exam Question and answers rated A+ 2024 CSC 1350 Final Exam (Comprehensive) Who writes the the source code(program), which is a .java file(s)? - correct answer The programmer What does Java run on? - correct answer Java runs on a target machine, it runs on the java virtual machine (JVM) what creates a byte code file (.class)? - correct answer The Java compiler creates a bytecode file (.class), this is an object file the JVM can run What is the object code? - co...

0.0 - ANSWERWhat would be the value of discountRate after the following statements are executed? double discountRate = 0.00; int purchase = 100; if( purchase > 1000 ) discountRate = .05; else if ( purchase > 750 ) discountRate = .03; else if ( purchase > 500 ) discountRate = .01; .01 .05 0.0 .03 Read and interpreted by the JVM - ANSWERByte code instructions are: Syntax errors Another name for source code Machine code instructions Read and interpreted by the JVM...

CIS 3145 MidTerm Exam Review Questions With Complete Solutions What is the Java Programming Language? - Correct Answer It was released in 1995 as a part of Sun Microsystems' Java platform. The language has developed much of its syntax from C and C++. Java applications are usually compiled to bytecode (class file) that can run on any Java Virtual Machine (JVM). Java is currently one of the most popular programming languages being used. How does the Java language compare to other languages? -...

CERT QUIZ -- Evaluate and select system components to meet requirements and technical limitations for a new or existing environment. QUESTION: A couple of system administrators are discussing whether a reverse proxy should be used for the company's HTTPS encrypted Jira installation. Which statement accurately describes some of the benefits of using Apache as a non-caching reverse proxy? A) The reverse proxy will benefit system security by making it possible for the admins to more...

Introducing Java Platform context. What are the 3 main parts of the Java platform? The Java programming language, runtime environment, standard library. Introducing Java Platform context. What does the Java programming language govern? The format of Java source code - keywords, syntax rules. Introducing Java Platform context. What does the runtime environment do? Executes Java code, abstracts underlying OS/hardware. Introducing Java Platform context. What's in the standard library? Com...

What is Java EE? - ANSWERJava Enterprise Edition. For making large-scale shit like Distributed and networking systems or Enterprise web-based applications. What is Java ME? - ANSWERJava Micro Edition. Subset of the SE or standard edition. Used for recourse starved devices like appliances or security cameras. What is the JDK? - ANSWERJava Development Kit. Used to develop and run java applications. Includes JRE, java to interpret, javac to compile. What is the JRE? - ANSWERJava Runtime En...

Computer Science Test #2 (4.1 and 4.2). Exam Review Questions and answers, rated A+ What is the role of JDK in java programming? - -Development kit needed to create java programs Take java source code and converts them into a format that JRE and JVM can execute Includes debuggers and a Java compiler for compiling the code Describe the role of JRE in java programming - -Includes JVM Used to run java program Has libraries, java launcher Does not include development tools Using the JRE,...

Platform Independence: Write Once, Run Anywhere One of the main benefits of Java. This means that any code written with java only needs to be compiled once, rather than needing to be recompiled for different operating systems Verbose, Clear Syntax Used to tell the JVM which kind of information to see. The three verbose options supported by JVM are verbose: class, verbose: garbage collection, and verbose: Java Native Interface. Garbage collection, finalize An object is eligible for garbage ...

Each class you create becomes a new _____ that can be used to declare variables and create objects. Type Which of the following sets of statements creates a multidimensional array with 3 rows, where the first row contains one value, the second row contains 4 items and the final row contains 2 items? int[][] items; items = new int[3][]; items[0] = new int[1]; items[1] = new int[4]; items[2] = new int[2]; Declaring main as static allows the JVM to invoke main ________. Without creating...