第3章JAVA选择题

class A

{

int i;

static String s;

void method1(){}

static void method2(){}

}

1. class Person{

2.public void printValue(int i, int j) {//...}3. public void printValue(int i){//...}

5. public class Teacher extends Person {

6.public void printValue() {//...}

7.public void printValue(int i) {//...}

8.public static void main(String args[]）{

9.Person t = new Teacher();

10.t.printValue(10);

11.}

12.}

第10行语句将调用哪行语句?()

1. A a0=new A();

2. A a1=new B();

3.A a2=new C();

问以下哪个说法是正确的

class A{

int v = 10;

public void print(){

int v =100;

System.out. println(v);

}

}

public class Main {

public static void main(String[]args) {

A a=new A();

a.print();

}

}

final class Father{    //A

int a=100;

}

class Child extends Father{  //B

int b=200;

}

public class B{   //C

public static void main(String[] args){

Child child=new Child();  //D

}

}