gistfile1.java

abstract class Process {
    public abstract void run() throws ProcessFailure;
    
    public Process and(final Process other) {
        final Process self = this;
        return new Process() {
            public void run() throws ProcessFailure {
                self.run();
                other.run();
            }
        };
    }
    
    public Process or(final Process other) {
        final Process self = this;
        return new Process() {
            public void run() throws ProcessFailure {
                try {
                    self.run();
                } catch(ProcessFailure e) {
                    other.run();
                }
            }
        };
    }
}

class ProcessFailure extends Exception {
}

class Printer extends Process{
    private final String text;
    private final boolean success;
    
    public Printer(final String text, final boolean success) {
        this.text = text;
        this.success = success;
    }
    
    public void run() throws ProcessFailure {
        final String result = success ? "success" : "fail";
        System.out.println(text + ": " + result);
        if(! success)
            throw new ProcessFailure();
    }
}

public class Processes {
    private static final Printer printA = new Printer("A", false);
    private static final Printer printB = new Printer("B", false);
    private static final Printer printC = new Printer("C", false);
    private static final Printer printD = new Printer("D", true);

    public static void main(final String[] args) {
        try {
            printA.or(printB).or(printC).and(printD).run();
        } catch (ProcessFailure e) {
            System.out.println("Sorry！");
        }
    }
}