#format java
/**
 * TemplateMethodPattern Example
 */

abstract class AbstractDisplay {
    public abstract void open();
    public abstract void print();
    public abstract void close();
    public final void display() {
        open();
        for(int i=0; i<5; i++) print();
        close();
    }
}

class CharDisplay extends AbstractDisplay {
    private char ch;
    public CharDisplay(char ch) {
        this.ch = ch;
    }
    public void open() {
        System.out.print("<<");
    }
    public void print() {
        System.out.print(ch);
    }
    public void close() {
        System.out.println(">>");
    }
}

class StringDisplay extends AbstractDisplay {
    private String string;
    private int width;
    public StringDisplay(String string) {
        this.string = string;
        this.width = string.getBytes().length;
    }
    public void open() {
        printLine();
    }
    public void print() {
        System.out.println("|"+string+"|");
    }
    public void close() {
        printLine();
    }
    private void printLine() {
        System.out.print("+");
        for(int i=0; i<width; i++) {
            System.out.print("-");
        }
        System.out.println("+");
    }
}

public class TemplateMethodDisplay {
    public static void main(String[] args) {
        AbstractDisplay d1 = new CharDisplay('H');
        AbstractDisplay d2 = new StringDisplay("Hello world");
        d1.display();
        d2.display();
    }
}