Question

$ cat Const.java 
public class Const {
    String Const(String hello) {
        return hello; 
 }
 public static void main(String[] args) {
     System.out.println(new Const("Hello!"));
 }
}
$ javac Const.java 
Const.java:7: cannot find symbol
symbol  : constructor Const(java.lang.String)
location: class Const
  System.out.println(new Const("Hello!"));
                     ^
1 error

Answer 1

What you’ve defined isn’t actually a constructor, but a method called Const. If you changed your code to something like this, it would work:

Const c = new Const();
System.out.println( c.Const( "Hello!" ) );

If no specific constructor is explicitly defined, the compiler automatically creates a no-argument constructor.