public interface Furniture {    public void stressTest();    public void fireTest();}public abstract class Chair implements Furniture {public abstract String chairType();}public abstract class Table implements Furniture { public abstract String tableType();}public class MetalChair extends Chair {    @Override    public void stressTest() {        //To change body of implemented methods use File | Settings | File Templates.    }    @Override    public void fireTest() {        //To change body of implemented methods use File | Settings | File Templates.    }}public class MetalTable extends Table {    @Override    public void stressTest() {        System.out.println("Passed Stress Test");        //To change body of implemented methods use File | Settings | File Templates.    }    @Override    public void fireTest() {        //To change body of implemented methods use File | Settings | File Templates.        System.out.println("Passed Fire Test");    }    @Override    public String tableType() {        //To change body of implemented methods use File | Settings | File Templates.        String s = "This is a metal Table";        return s;    }}public class WoodenTable extends Table {    @Override    public void stressTest() {        //To change body of implemented methods use File | Settings | File Templates.        System.out.println("Failed Stress Test");    }    @Override    public void fireTest() {        //To change body of implemented methods use File | Settings | File Templates.        System.out.println("Failed Fire Test");    }    @Override    public String tableType() {        //To change body of implemented methods use File | Settings | File Templates.        String s = "This is a wooden Table";        return s;    }}public class WoodenChair extends Chair {    @Override    public void stressTest() {        //To change body of implemented methods use File | Settings | File Templates.    }    @Override    public void fireTest() {        //To change body of implemented methods use File | Settings | File Templates.    }}public class MainClass {    public static void main(String[] args){        Table table = null;        Scanner input =  new Scanner(System.in);        String str = input.next();        if(str.equals("wooden")){            table = new WoodenTable();        }   else if (str.equals("metal")){            table = new MetalTable();        }        System.out.println(table.tableType());        table.stressTest();        table.fireTest();    }}