8.25.5.%s Formats an object, generally by calling its toString() method
import java.util.Formatter; public class MainClass{ public static void main(String[] argv){
StringBuilder sb = new StringBuilder();
Formatter f = new Formatter(sb);
MyClass b = new MyClass();
f.format("The value is %b, so there.", b);
System.out.println(sb);
}
}
class MyClass{ public String toString(){ return "MyClass";
}
}