JAVA version of "Hello world"

JAVA version of "Hello world"

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​ This application method is run on "IntelliJ IDEA 2019.3.1 x64" (currently it is still a little white)

Below is the code part

public class Hello{
    public static void main (String[] args){

        String a =  "hello world";

        System.out.println(a);

    }
}

This is one of the methods, is to use "String a = "hello world"; ", and finally express it

There is also a direct expression

code show as below:

public class Hello{
    public static void main (String[] args){

        System.out.println("hello world");

    }
}

The final results are as follows: