Why should we learn Java?
Java is still heavily used today and is responsible fo
Why should we learn Java?
Java is still heavily used today and is responsible for many applications like Minecraft, LinkedIn, AWS, AliExpress, and Google’s Android. It is a simple language that does not have features like pointers or operator overloading, making it easy to write, compile, and debug programs. Java is also robust, secure, and provides high performance.
What are the key features of Java?
Platform independent application programming language
Object-oriented programming language
Simple language
Robust and reliable
Secure
What are the terminologies used in Java?
Java Virtual Machine (JVM) is a tool that takes bytecode as input and gives identical output in every operating system. Bytecode is the code produced by Java compiler. Java Runtime Environment (JRE) allows Java programs to run, while Java Development Kit (JDK) is a complete Java development kit that includes a compiler, JRE, debuggers, and documentation. Garbage collector is an inbuilt program in JVM that recalls objects that are not referenced.
Why is it important to be cautious about code when using long-standing objects in Java?
It is important to be cautious about code when using long-standing objects in Java because the garbage collector cannot recover memory from objects that have been referenced for a long time.
What is the class path in Java?
The class path is the file path where Java runtime and Java compilers look for .class files.
What is the difference between Java and C++?
Java is a platform-independent language used for application programming in various platforms, while C++ is not platform-independent and is used mainly for system programming. Java has built-in thread programming support, while C++ relies on third-party libraries for the same. Additionally, Java is an object-oriented language, and everything except fundamental types is an object in Java.
How do you run a Java program?
To run a Java program, you will need a Java Development Kit (JDK), Visual Studio Code with the Java extension, and a curious programmer. Java 11 is a long-term supported version of Java that can be downloaded from the Oracle website. To run a simple Java program, you will need to create a scanner object and prompt the user to input their name. The program will then display “Hello, ninja, and your name.”
