大话设计模式笔记(七)——模版方法模型

public abstractclass AbstractTempleExampage{
    public final void question1(){
        System.out.println("杨过得到后给了郭靖，炼成倚天剑、屠龙刀的玄铁可能是？a.球磨铸铁；b.马口铁；c.高速合金钢；d.碳素纤维。");
        System.out.println("答案：" +answer1());
    }

    public final void question2(){
        System.out.println("杨过、程英、陆无双铲除了情花，造成？a.使这种植物不再害人；b.使一种珍稀物种灭绝；c.破坏了那个生物圈的生态平衡；d.造成该地区沙漠化；");
        System.out.println("答案：" +answer2());
    }

    public final void question3(){
        System.out.println("蓝凤凰的致使华山师徒、桃谷六仙呕吐不止的药酒属于（ ） a.生物毒品 b.神经毒品 c.化学毒品 d.基因毒品 e.以上全不对 ");
        System.out.println("答案：" +answer3());
    }

    protected abstract String answer1();

    protected abstract String answer2();

    protected abstract String answer3();
}

public class ExampageA extends AbstractTempleExampage {
    @Override
    protected String answer1() {
        return "a";
    }

    @Override
    protected String answer2() {
        return "b";
    }

    @Override
    protected String answer3() {
        return "c";
    }
}

public class ExampageB extends AbstractTempleExampage {
    @Override
    protected String answer1() {
        return "a";
    }

    @Override
    protected String answer2() {
        return "c";
    }

    @Override
    protected String answer3() {
        return "b";
    }
}

public abstract int read() throws IOException;

/** doc */
public int read(byte b[]) throws IOException {
    return read(b, 0, b.length);
}

/** doc */
public int read(byte b[], int off, int len) throws IOException {
    if (b == null) {
        throw new NullPointerException();
    } else if (off < 0 || len < 0 || len > b.length - off) {
        throw new IndexOutOfBoundsException();
    } else if (len == 0) {
        return 0;
    }

    int c = read();
    if (c == -1) {
        return -1;
    }
    b[off] = (byte)c;

    int i = 1;
    try {
        for (; i < len ; i++) {
            c = read();
            if (c == -1) {
                break;
            }
            b[off + i] = (byte)c;
        }
    } catch (IOException ee) {
    }
    return i;
}