YOU SAID:

class HelloWorld { public static void main(String[] args){ System.out.println("Hello, world!"); } }

INTO JAPANESE

クラスHelloWorld { public static void main（String [] args）{ System.out.println（ "Hello、world！"）; } }

BACK INTO ENGLISH

Class HelloWorld { public static void main (String [] args) { System.out.println ("Hello, world!"); } }

INTO JAPANESE

クラスHelloWorld { public static void main（String [] args）{ System.out.println（ "Hello、world！"）; } }

BACK INTO ENGLISH

Class HelloWorld { public static void main (String [] args) { System.out.println ("Hello, world!"); } }