Recently, I begin to use java in my work. I used to c++ for more than 10 years.
remember, not
otherwise, you will got below error
Programmer start every thing begin with Hello World
public class HelloWorld { public static void main(String[] args) { System.out.println("Hello World!"); } }
Java main function, must be in a public class
public static void main(String[] args) {}
Compile HelloWorld
javac HelloWorld.java
Execute HelloWorld
java HelloWorld
remember, not
java HelloWorld.class
otherwise, you will got below error
Error: Could not find or load main class HelloWorld.class