Compile and Execute Java Online

public class HelloWorld{

     public static void main(String []args){
        System.out.println("Hello World");
        
        Newthing topo = new Newthing();
        System.out.println(topo.name);
     }
     
     public class Newthing {
         String name;
         String talk;
         
         public Newthing(String name, String talk) {
             this.name = name;
             this.talk = talk;
         }
     }
}