题目内容
类间的继承关系是（ ）
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阅读下面的程序，其中正确的是（）class person {String name;String nickName;public person(String a, String b) {name=a;nickName=b;}public String toString() {return name+" nickName="+nickName;}}public class employee extends person {String rank;public employee (String a, String b, String c) {super(a, b);rank=c;}public String toString(){return name+" nickName="+nickName+" rank="+rank ;}public public static void main(String[] args) {person one=new person("Wang", "Zhang");person two=new employee("Bob", "Tom", "manager");employee three =new employee("Jack", "David", "CEO");System.out.println(" one is "+ one.toString());System.out.println(" two is "+ two.toString());System.out.println(" three is "+ three.toString());}}
以下代码的输出结果是（）。try{System.out.print("try，");return;} catch(Exception e){System.out.print("catch，");} finally {System.out.print("finally");}
阅读下面的程序，写出运行结果class Shape {public void draw() {System.out.println("draw Shape");}}class Circle extends Shape {public void draw() {System.out.println("draw Circle");}}class Rectangle extends Shape {public void draw() {System.out.println("draw Rectangle");}}public class test {public static void main(String[] args){Shape[ ] shapes=new Shape[3];shapes[0]=new Shape();shapes[1]=new Circle();shapes[2]=new Rectangle();for (int i=0; i
药物治疗子宫肌瘤是应用具有抑制卵巢激素分泌或抑制卵巢激素作用的药物，达到缩小肌瘤、减轻症状的目的，其依据是：（ ）
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