Which statement is true about Java?
The correct answer to the question “Which statement is true about Java” is, option (a). Platform independent programming language. As we already know that Java is a platform-independent language, which functions on a set principle “compile once, and run everywhere”.
Which statement is true about assertion in the Java programming language?
Which statement is true about assertions in the Java programming language? Assertion expressions should not contain side effects. Assertion expression values can be any primitive type. Assertions should be used for enforcing preconditions on public methods.
Which of the following is not a Java features?
2) Which of the following is not a Java features? Explanation: The Java language does not support pointers; some of the major reasons are listed below: One of the major factors of not using pointers in Java is security concerns. Due to pointers, most of the users consider C-language very confusing and complex.
What is the use of Java interpreter Mcq?
Explanation: Interpreters read high level language (interprets it) and execute the program. Interpreters are normally not passing through byte-code and jit compilation.
Is Java a camel case?
Java uses CamelCase as a practice for writing names of methods, variables, classes, packages, and constants. … In constants, we do use everything as uppercase and only ‘_’ character is used even if we are combining two or more words in java.
What is the need of JVM?
A Java virtual machine (JVM) is a virtual machine that enables a computer to run Java programs as well as programs written in other languages that are also compiled to Java bytecode.
Should you use assert in Java?
Assertions should be used to check something that should never happen, while an exception should be used to check something that might happen. For example, a function might divide by 0, so an exception should be used, but an assertion could be used to check that the harddrive suddenly disappears.
What is assert in coding?
In computer programming, specifically when using the imperative programming paradigm, an assertion is a predicate (a Boolean-valued function over the state space, usually expressed as a logical proposition using the variables of a program) connected to a point in the program, that always should evaluate to true at that …
How does assert work Java?
assert is a Java keyword used to define an assert statement. An assert statement is used to declare an expected boolean condition in a program. If the program is running with assertions enabled, then the condition is checked at runtime. If the condition is false, the Java runtime system throws an AssertionError .
Which of the following is a Java feature?
Java is guaranteed to be write-once, run-anywhere language. On compilation Java program is compiled into bytecode. This bytecode is platform independent and can be run on any machine, plus this bytecode format also provide security. Any machine with Java Runtime Environment can run Java Programs.
What is true constructor?
What is true about constructor? Explanation: Constructor returns a new object with variables defined as in the class. Instance variables are newly created and only one copy of static variables are created. … Explanation: No instance can be created of abstract class.
Can I run two versions of Java?
It is very possible to run multiple versions of Java on the same machine so you can run your existing applications and Ignition at the same time.
Is Java an interpreter?
Java can be considered both a compiled and an interpreted language because its source code is first compiled into a binary byte-code. This byte-code runs on the Java Virtual Machine (JVM), which is usually a software-based interpreter.