Lesson 1 · Hello Java
Java is a strongly-typed, object-oriented programming language developed by Sun Microsystems (now Oracle), released in 1995. Every Java program begins with a class definition containing a main method — the program entry point. The canonical first Java program prints to standard output via PrintStream.println. The Java Development Kit (JDK) bundles the compiler (javac), runtime (JRE/JVM), debugger (jdb), and standard class library. Java SE 21 is the current Long-Term Support (LTS) release per Oracle. Java enforces strong encapsulation: all code resides in classes; access is controlled via public, protected, package-private, and private modifiers. The JVM performs automatic garbage collection, eliminating manual memory management.
What this asks you
Which of the following is the correct syntax for the main method that allows a Java program to execute instructions?
and 2 more questions
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