多项选择题
public class Parent {
public int addValue（ int a， int b） {
int s；
s = a+b；
return s；
}
}
class Child extends Parent {
}
Which methods can be added into class Child？（）
A. int addValue（ int a， int b ）{// do something...}
B. public void addValue （）{// do something...}
C. public int addValue（ int a ）{// do something...}
D. public int addValue（ int a， int b ）throws MyException {//do something...}
相关考题
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单项选择题
Given the following code： public class Person{ int arr[] = new int[10]； public static void main（String a[]） { System.out.println（arr[1]）； } } Which statement is correct？（）
A. When compilation some error will occur.
B. It is correct when compilation but will cause error when running.
C. The output is zero.
D. The output is null. -
单项选择题
Given the following code： public class Person{ static int arr[] = new int[10]； public static void main（String a[]） { System.out.println（arr[1]；） } } Which statement is correct？（）
A. When compilation some error will occur.
B. It is correct when compilation but will cause error when running.
C. The output is zero.
D. The output is null. -
多项选择题
WhichstatementsaboutJavacodesecurityaretrue？（）
A. The bytecode verifier loads all classes needed for the execution of a program.
B. Executing code is performed by the runtime interpreter.
C. At runtime the bytecodes are loaded， checked and run in an interpreter.
D. The class loader adds security by separating the namespaces for the classes of the local file system from those imported from network sources.
