General Study Notes Quiz

Oak

James Gosling

1995

.java

Bytecode (.class)

General-purpose, concurrent, class-based, object-oriented language.

Easy to learn and use; intuitive for programmers.

Extensive checks during compilation and execution to enforce security.

Java code is written to be independent of the underlying hardware architecture, meaning it can run on different platforms without modification.

Java's ability to execute on any platform with a Java Virtual Machine (JVM) installed.

Java achieves fast execution speeds despite being an interpreted language, thanks to optimizations within the JVM.

Java code is not directly executed by the computer; it is first translated into bytecode by the compiler, then executed by the JVM.

Java supports multi-threading, enabling multiple tasks to run concurrently within a program.

Java allows code to be dynamically loaded and executed at runtime, enabling flexibility and adaptability.

The core Java platform used to build applications that run on a single computer.

A platform for developing and deploying complex, distributed, enterprise applications.

An interface that provides a sorted view of its elements. Elements are arranged in ascending order, and duplicates are not allowed.

A concrete implementation of the SortedSet interface that uses a tree data structure for storage.

The mechanism used by Java to process input and generate output. It allows programs to interact with external resources like files, networks, and devices.

A sequence of data that flows continuously. In Java I/O, streams are used for efficient data transfer.

The package in Java that contains all the necessary classes for input and output operations, including streams, file handling, and network communication.

A stream used to send data from a program to a destination like a file, device, or network.

A stream used to read data from a source like a file, device, or network into a program.

An abstract class that serves as the base class for all classes representing streams of output bytes.

A tool within NetBeans that helps developers analyze and understand the runtime behavior of applications, including thread states, CPU performance, and memory usage.

Provides foundational services for developing large desktop applications in NetBeans, including features like windows, menus, settings management, and file access.

Used to develop and debug Java applications specifically for mobile devices running J2ME (Java Micro Edition). Supports MIDP 2.0 and CLDC 1.1.

A debugging mode unique to the NetBeans Mobility Pack that enables developers to directly debug their Java applications on a connected mobile device.

A visual GUI builder in NetBeans that makes creating graphical user interfaces easier by allowing drag-and-drop component placement and automatic layout management.

A layout manager specifically designed for Matisse to support the drag-and-drop functionality and provide flexible layout options for graphical interfaces.

Matisse automatically suggests adding event handlers when you right-click a UI object, allowing you to quickly implement actions without writing complex code.

A visual tool within the IDE (Integrated Development Environment) that allows developers to design graphical user interfaces (GUIs) by dragging and dropping components and adjusting their properties.

The logical OR operator (||) returns true if at least one operand is true. It evaluates the right-hand operand only if the left-hand operand is false.

The bitwise OR operator (|) performs a bit-by-bit OR operation. It returns a 1 in each bit position if either operand has a 1 in that position.

An array is a collection of data elements of the same type stored in contiguous memory locations. Each element can be accessed using its index.

The break statement immediately terminates the innermost loop or switch statement it is enclosed in. It exits the loop entirely.

The modulus operator (%) divides the left-hand operand by the right-hand operand and returns the remainder.

An operator that evaluates to true if at least one of its operands is true. It short-circuits, meaning it stops evaluating the rest of the expression as soon as one true operand is found.

Increases the value of the variable e by 1 before its value is used in the expression.

Creating a variable that can hold multiple values of the same data type.

Assigning values to the elements of an array during its declaration.

Assigning a reference to an existing array to another array variable.

The total number of elements that an array can hold.

The output of the code will be: e = 52 e = 53 This is because of the short-circuiting behavior of the logical OR operator (||) and the pre-increment operator (++e). The first line evaluates to true because (++e < 100) is true. The second line evaluates to true because (e++ < 100) is true and the increment happens after evaluation of the expression.

The output of the program will be: My Array length is: 3 Student Marks Array length is: 3 This is because both arrays my_array and student_marks are pointing to the same array object in memory. Therefore, they both have the same length, which is 3.