【多选题】下列程序中注释的哪两个代码( A , B , C , D )是错误的(无法通过编译)? class Father { privat

1.下列程序中注释的哪两个代码（A，B，C，D）是错误的（无法通过编译）？class Father {private int money =12;float height;int seeMoney(){return money ; //A}}class Son extends Father {int height;int lookMoney() {int m = seeMoney(); //Breturn m;}}class E {public static void main(String args[]) {Son erzi = new Son();erzi.money = 300; //Cerzi.height = 1.78F; //D}}

2.下列程序中注释的哪两个代码（A，B，C，D）是错误的（无法通过编译）？class Father { private int money =12; float height; int seeMoney(){ return money ; //A }}class Son extends Father { int height; int lookMoney() { int m = seeMoney(); //B return m; }}class E { public static void main(String args[]) { Son erzi = new Son(); erzi.money = 300; //C erzi.height = 1.78F; //D }}选项： A:A; B:B; C:C; D:D

3.下列程序中注释的哪两个代码（1、2、3、4）是错误的（无法通过编译）？ class Father { private int money =12; float height; int seeMoney(){ return money ; //1 } } class Son extends Father { int height; int lookMoney() { int m = seeMoney(); //2 return m; } } class E { public static void main(String args]) { Son erzi = new Son(); erzi.money = 300; //3 erzi.height = 1.78F; //4 } } 选项： A:1 B:2 C:3 D:4

4.下列程序中注释的哪两个代码（1、2、3、4）是错误的（无法通过编译）？Class Father { private int money =12; float height; int seeMoney(){ return money ; //1 } }Class Son extends Father { int height; int lookMoney() { int m = seeMoney(); //2 return m; }}Class E { public static void main(String args]) { Son erzi = new Son(); erzi.money = 300; //3 erzi.height = 1.78F; //4 }} 选项： A: 1 B: 2 C: 3 D: 4

5.【多选题】下列程序中注释的哪两个代码(A,B,C,D)是错误的(无法通过编译)? class Father { private int money =12; float height; int seeMoney(){ return money ; //A } } class Son extends Father { int height; int lookMoney() { int m = seeMoney(); //B return m; } } class E { public static void main(String args[]) { Son erzi = new Son(); erzi.money = 300; //C erzi.height = 1.78F; //D } }A. A处代码错误 B. B处代码错误 C. C处代码错误 D. D处代码错误

6.下列程序中注释的哪两个代码(A,B,C,D)是错误的(无法通过编译)? class Father { private int money =12; float height; int seeMoney(){ return money ; //A } } class Son extends Father { int height; int lookMoney() { int m = seeMoney(); //B return m; } } class E { public static void main(String args[]) { Son erzi = new Son(); erzi.money = 300; //C erzi.height = 1.78F; //D } }A.A处代码错误B.B处代码错误C.C处代码错误D.D处代码错误

7.【多选题】下列程序中注释的哪两个代码(A,B,C,D)是错误的(无法通过编译)? class Father{ private int money =12; float height; int seeMoney(){ return money; //A } } class Son extends Father{ int height; int lookMoney(){ int m = seeMoney(); //B rerurn m; } } class E{ public static void main(String args[]){ Son erzi = new Son(); erzi.money =300; //C erziheight = 1.78F; //D } }A. A B. B C. C D. D

8.下列程序中注释的哪两个代码（A，B，C，D）是错误的（无法通过编译）？class Father { private int money =12; float height; int seeMoney(){ return money ; //【代码1】 }}class Son extends Father { int height; int lookMoney() { int m = seeMoney(); //【代码2】 return m; }}class E { public static void main(String args[]) { Son erzi = new Son(); erzi.money = 300; //【代码3】 erzi.height = 1.78F; //【代码4】 }}A. 代码1B. 代码2C. 代码3D. 代码4选项： A:A; B:B; C:C; D:D

9.下列程序中注释的哪两个代码是错误的? class Father{ private int money=12; float height; int seeMoney(){ return money;//A } } class Son extends Father{ int height; int lookMoney(){ int m = seeMoney(); //B return m; } } class E{ public static void main(String args[]){ Son erzi = new Son(); erzi.money = 300; //C erzi.height = 1.78F;//D } }A.标号为A的语句B.标号为B的语句C.标号为C的语句D.标号为D的语句

10. 下列ABCD注释标注的哪行代码有错误？class Father { private int money =12; float height; int seeMoney(){ return money ; //A }}class Son extends Father { int m; void f() { m = seeMoney(); //B m = money; //C height = m+12.7F; //D }} 选项： A、 //A B、 //B C、 //C D、 //D

11.以下哪个方法不可以加入类Son？ class Father{ public void methodOne(int i){} public void methodTwo(int i){} public static void methodTree(int i){} public static void methodFour(int i){} } class Son extends Father{…}

12.【单选题】以下哪个方法不可以加入类Son？（） class Father{public void methodOne(int i){}public void methodTwo(int i){}public static void methodTree(int i){}public static void methodFour(int i){}}class Son extends Father{…}

13.以下哪个方法不可以加入类Son class Father{ public void methodOne（int i){} public void methodTwo（int i){} public static void methodTree（int i){} public static void methodFour（int i){} } class Son extends Father{…} 选项：A、public static void methodOne(int i){}B、public void methodTwo(int i){}C、public static void methodTree(int i, int j){}D、public static void methodFour(int i){}

14.以下哪个方法不可以加入类 Son？（） Class Father{ Public void methodOne(int i){} Public void methodTwo(int i){} Public static void methodTree(int i){} Public static void methodFour(int i){} } Class Son extends Father{…} 选项： A: public static void methodOne(int i){} B: public void methodTwo(int i){} C: public static void methodTree(int i, int j){} D: public static void methodFour(int i){}

15.【单选题】以下哪个方法不可以加入类Son? () class Father{ public void methodOne(int i){} public void methodTwo(int i){} public static void methodTree(int i){} public static void methodFour(int i){} } class Son extends Father{...}A. public static void methodOne(int i){} B. public void methodTwo(int i){} C. public static void methodTree(int i, int j){} D. public static void methodFour(int i){}

16.以下哪个方法不可以加入类Son?
( ) class Father{ public void methodOne(int i){} public void methodTwo(int i){} public static void methodTree(int i){} public static void methodFour(int i){}}class Son extends Father{…} 选项： A、public static void methodOne(int i){} B、public void methodTwo(int i){} C、public static void methodTree(int i, int j){} D、public static void methodFour(int i){}

17.以下哪个方法不可以加入类Son? ( )class Father{ public void methodOne(int i){} public void methodTwo(int i){} public static void methodTree(int i){} public static void methodFour(int i){}}class Son extends Father{…} 选项：A、public static void methodOne(int i){} B、public void methodTwo(int i){} C、public static void methodTree(int i, int j){} D、public static void methodFour(int i){}

18.请写出程序运行的结果。class Animal{ int m=100; public int seeM() { return m; } public int getM() { return m; }}class Dog extends Animal{ int m=6; public int seeM() { return m; }}public class E {public static void main(String[] args) { Animal a = null; Dog d = new Dog(); a = d; System.out.printf("%d:%d:%d", d.seeM(),a.seeM(),a.getM());}}

19.下面代码的运行结果为：（）public class Rectangle {public int width = 3;public int height = 4;public int area() {return width * height; }public static void main(String args[]) { Rectangle rectangle = new Rectangle(); rectangle.height = 5; System.out.println(rectangle.area()); }}选项： A:15; B:有编译错误，程序不能运行; C:12; D:0

20.A,B,C,D标注行哪行有错误？abstract class A{ abstract int get（）；}class People { int computer（A a）{ return a.get（）; }}class Exc{ public static void main（String[] args){ People p = new People（）； int m=p.computer（new A（）{ int m=100； //A static int n=10； //B public int get（）{ //C return 100+m； //D } }）； System.out.println（m）； }}选项： A:A; B:B; C:C; D:D

21.//阅读程序题（给出【代码】注释标注的代码的输出结果）interface Com{ int add(int a,int b); public static int get(int n){ return n ; } public default int see(int n){ return n; } public default int look(int n){ return n; }}class A implements Com{ public int add(int a,int b){ return a+b; } public int see(int n){ return n+1; }}public class E{ public static void main(String args[ ]){ A a = new A(); int m = a.add(12,6); int n = Com.get(12); int t = a.see(6); int q = a.look(6); System.out.printf("%d:%d:%d:%d",m,n,t,q);//【代码】 }}

22.以下程序的运行结果为（）。 class A { public int modify(int a) { return a + 100; }} class B extends A { public int modify(int a) { return a*100; }} class E { public static void main(String args[]) { A a = new A(); System.out.print(a.modify(8)+","); a = new B(); System.out.println(a.modify(8)); }}

23.请说出下面中【代码】的输出结果Interface Com { int add(intA,int b); public static int get(int n){ return n; } public default int see(int n){ return n; } public default int look(int n){ return n; }}Class A implements Com{ public int add(intA,int b) { return a+b; } public int see(int n){ return n+1; }}Public class Main { public static void main(String args]) { int m = a add(12,6); int n =Com.get(12); int t = a see(6); int q = a look(6); System.out.printf("%d:%d:%d:%d",m,n,t,q); //【代码】 }}