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The Overview of Java Basic Syntax
Here are some basic Java syntax rules:
1. Java code is case-sensitive.
2. The code is written in classes.
3. Each statement must end with a semicolon ;.
4. Java comments start with // for single-line comments, or /and end with / for multi-line comments.
5. Java uses the curly brace {} to define the scope of methods and classes.
6. The main method is the entry point of a Java program and is defined as follows:
public static void main(String[] args) {
// code goes here
}7. To declare a variable, use the data type followed by the variable name, and optionally an initial value:
int num = 10;
String message = "Hello, World!";
8. To output a message to the console, use the System.out.println() method:
System.out.println("Hello, World!");9. To get input from the user, use the Scanner class:
import java.util.Scanner;
Scanner scanner = new Scanner(System.in);
String name = scanner.nextLine();