16 of 62、 ClassOne.java
1. package com.abc.pkg1;
2. public class ClassOne {
3. private char var = ‘a’;
4. char getVar() {return var;}
5. }
ClassTest.java
1. package com.abc.pkg2;
2. import com.abc.pkg1.ClassOne;
3. public class ClassTest extends ClassOne {
4. public static void main(String[]args) {
5. char a = new ClassOne().getVar();
6. char b = new ClassTest().getVar();
7. }
8. }
What is the result?
A. Compilation will fail.
B. Compilation succeeds and no exceptions are thrown.
C. Compilation succeeds but an exception is thrown at line 5 in ClassTest.java.
D. Compilation succeeds but an exception is thrown at line 6 in ClassTest.java.
正确答案: B 为什么答案不是:D
第4行没有修饰符,不是只有同包中的类才能访问ClassOne的方法吗?
1. package com.abc.pkg1;
2. public class ClassOne {
3. private char var = ‘a’;
4. char getVar() {return var;}
5. }
ClassTest.java
1. package com.abc.pkg2;
2. import com.abc.pkg1.ClassOne;
3. public class ClassTest extends ClassOne {
4. public static void main(String[]args) {
5. char a = new ClassOne().getVar();
6. char b = new ClassTest().getVar();
7. }
8. }
What is the result?
A. Compilation will fail.
B. Compilation succeeds and no exceptions are thrown.
C. Compilation succeeds but an exception is thrown at line 5 in ClassTest.java.
D. Compilation succeeds but an exception is thrown at line 6 in ClassTest.java.
正确答案: B 为什么答案不是:D
第4行没有修饰符,不是只有同包中的类才能访问ClassOne的方法吗?
解决方案 »
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