文档介绍：java 测试题答案第一题:饮料味道 package 饮料味道; public class Coffee extends Drink { void taste() { (" 咖啡:香醇,苦涩"); }} package 饮料味道; public class Beer extends Drink { void taste() { (" 啤酒:清凉,爽口"); }} package 饮料味道; public class Milk extends Drink { void taste() { (" 牛奶:鲜美,浓郁"); }} package 饮料味道; public abstract class Drink { abstract void taste(); static final int COFFEEID= 1; static final int BEERID = 2; static final int MILKID = 3; static Drink getDrink(int getDrinkTypt){ switch(getDrinkTypt){ case COFFEEID: return new Coffee(); case BEERID: return new Beer(); case MILKID: return new Milk(); } return null; }} package 饮料味道; import ; public class Test { public static void main(String[] args) { (" 请输入 1到3 整数:"); Scanner s= new Scanner(); int i= (); Drink drink = (i); //(().getName()); (); }} x=10,y=9 a=(--x==y++)?--x:++y; b=x++ c=y abc 的值第二题:; public class MemberInnerClassTest { /** 若想在成员内部类访问外部类的成员变量, 用 */ public static void main(String[] args) { inner=new MemberInner().new Inner2(); (); }} class MemberInner{ private int a=4; public class Inner2{ private int a=5; public void test(){ ("hello world"); (); (); }}} 第三题: package test01; public class Dolphin implements Animal { ***@Override public void eat() { (" 海豚吃鱼! "); } public void action() { (" 海豚会游泳! "); }} ___________________________________________________________ ______ package test01; public class Parrot implements Animal { ***@Override public void eat() { (" 鹦鹉吃虫子! "); } public void action() { (" 鹦鹉会飞! "); }}| ___________________________________________________________ _______| package test01; public class Tiger implements Animal { ***@Override public v