"Hello World" in Java

<!-Title: "Hello World" in Java->


For studying, I implemented "Hello World" in various languages.



Visual Studio Code (Windows version)

Windows Subsystem for Linux (Ubuntu 18.04 LTS)

javac 1.8.0_181 openjdk 10.0.2 2018-07-17

Hello World


public class HelloWorld {
    public HelloWorld(int count) {
        this.count = count;

    private int count;

    private void sayOnce(Integer value) {
        System.out.println("Hello, world. " + value.toString());

    public void say() {
        for (int i = 0; i < this.count; i++) {

    public static void main(String[] args) {
        HelloWorld hw = new HelloWorld(10);


Output result

Hello, world. 0
Hello, world. 1
Hello, world. 2
Hello, world. 3
Hello, world. 4
Hello, world. 5
Hello, world. 6
Hello, world. 7
Hello, world. 8
Hello, world. 9


I finished it in a similar way to C ++.

I haven't touched Java itself so much, but I use C # a lot, so I could write it without any discomfort.

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