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10. public class SuperCaic { 11. protected static int multiply(int a, int b) { return a * b; } 12. } and: 20. public class SubCalc extends SuperCalc { 21. public static int multiply(int a, int b) { 22. int c = super.multiply(a, b); 23. return c; 24. } 25. } and: 30. SubCalc sc = new SubCalc(); 31. System.out.println(sc.multiply(3,4)); 32. System.out.println(SubCalc.multiply(2,2)); What is the result?()
- A、 12 4
- B、 The code runs with no output.
- C、 An exception is thrown at runtime.
- D、 Compilation fails because of an error in line 21.
- E、 Compilation fails because of an error in line 22.
- F、 Compilation fails because of an error in line 31.
参考答案
更多 “ 10. public class SuperCaic { 11. protected static int multiply(int a, int b) { return a * b; } 12. } and: 20. public class SubCalc extends SuperCalc { 21. public static int multiply(int a, int b) { 22. int c = super.multiply(a, b); 23. return c; 24. } 25. } and: 30. SubCalc sc = new SubCalc(); 31. System.out.println(sc.multiply(3,4)); 32. System.out.println(SubCalc.multiply(2,2)); What is the result?()A、 12 4B、 The code runs with no output.C、 An exception is thrown at runtime.D、 Compilation fails because of an error in line 21.E、 Compilation fails because of an error in line 22.F、 Compilation fails because of an error in line 31.” 相关考题
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单选题程序: class TestApp{ public static void main(String[] args){ System.out.println(multiply(2,3,4,5)); } public int multiply(int[] nums){ int result = 1; for(int x :nums) result *= x; return result; } } 程序运行后的输出是哪项?()A
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单选题10. public class SuperCaic { 11. protected static int multiply(int a, int b) { return a * b; } 12. } and: 20. public class SubCalc extends SuperCalc { 21. public static int multiply(int a, int b) { 22. int c = super.multiply(a, b); 23. return c; 24. } 25. } and: 30. SubCalc sc = new SubCalc(); 31. System.out.println(sc.multiply(3,4)); 32. System.out.println(SubCalc.multiply(2,2)); What is the result?()A
12 4B
The code runs with no output.C
An exception is thrown at runtime.D
Compilation fails because of an error in line 21.E
Compilation fails because of an error in line 22.F
Compilation fails because of an error in line 31.
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单选题class TestApp{ public static void main(String[] args){ System.out.println(multiply(2,3,4,5)); } public int multiply(int… nums){ int result = 1; for(int x :nums) result *= x; //result =result*x; return result; } } 2、6、24、120 程序运行后的输出是哪项?()A
14B
编译错误C
120D
24
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