Tài liệu SPECIAL JAVA SUBJECT part 1

A Simple Java Program
public class FirstSample{
public static void main(String[] args)
{
System.out.println(Hello, World!);
}
}
nJava is case sensitive
nThe keyword public is called an access modifier
nThe keyword class is there to remind you that everything in a Java program must be inside a class
nThe main method in the source file is necessary in order to execute the program
nThe System.out.println( ) is used to invoke method println of an object System.out