}
if(answer == null) {
return "no";
}
return answer;
}
}
package hook;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
public class CoffeeWithHook extends CaffineBeverageWithHook {
@Override
void brew() {
System.out.println("Dripping Coffee through filter");
}
@Override
void addCondiments() {
System.out.println("Adding Sugar and Milk");
}
/**
* 覆盖这个钩子函数，提供自己的功能
*/
public boolean customerWantsCondiments() {
String answer = getUserInput();
if(answer.toLowerCase().startsWith("y")){
return true;
} else {
return false;
}
}
private String getUserInput() {
String answer = null;
System.out.println("Would you like milk and sugar with your coffee (y/n) ");
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
try {
answer = in.readLine();
} catch (IOException e) {
System.out.println("IO error trying to read your answer");
}
if(answer == null) {
return "no";
}
return answer;
}
}
[java]
package hook;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
public class TeaWithHook extends CaffineBeverageWithHook {
@Override
void brew() {
System.out.println("Steeping the tea");
}
@Override
void addCondiments() {
System.out.println("Adding Lemon");
}
/**
* 覆盖这个钩子函数，提供自己的功能
*/
public boolean customerWantsCondiments() {
String answer = getUserInput();
if(answer.toLowerCase().startsWith("y")){
return true;
} else {
return false;
}
}
private String getUserInput() {
String answer = null;
System.out.println("Would you like lemon with your tea (y/n) ");
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
try {
answer = in.readLine();
} catch (IOException e) {
System.out.println("IO error trying to read your answer");
}
if(answer == null) {
return "no";
}
return answer;
}
}
package hook;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
public class TeaWithHook extends CaffineBeverageWithHook {
@Override
void brew() {
System.out.println("Steeping the tea");
}
@Override
void addCondiments() {
System.out.println("Adding Lemon");
}
/**
* 覆盖这个钩子函数，提供自己的功能
*/
public boolean customerWantsCondiments() {
String answer = getUserInput();
if(answer.toLowerCase().startsWith("y")){
return true;
} else {
return false;
}
}
private String getUserInput() {
String answer = null;
System.out.println("Would you like lemon with your tea (y/n) ");
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
try {
answer = in.readLine();
} catch (IOException e) {
System.out.println("IO error trying to read your answer");
}
if(answer == null) {
return "no";
}
return answer;
}
}
[java]
package hook;
public class BeverageTestDrive {
public static void main(String[] args) {
TeaWithHook teaHook = new TeaWithHook();
CoffeeWith