^{<ruby id="dbwci"></ruby>}

單項(xiàng)選擇題

ClassOne.java
package com.abc.pkg1；
public class ClassOne {
private char var = ‘a‘；
char getVar（） {return var；}
}
ClassTest.java
package com.abc.pkg2；
import com.abc.pkg1.ClassOne；
public class ClassTest extends ClassOne {
public static void main（Stringargs） {
char a = new ClassOne（）.getVar（）；
char b = new ClassTest（）.getVar（）；
}
}
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.

你可能感興趣的試題

單項(xiàng)選擇題

You want to limit access to a method of a public class to members of the same class. Which access modifier accomplishes this objective？（）

A. Public
B. Private
C. Protected
D. Transient
E. No access modifier is required

單項(xiàng)選擇題

public class Mycircle {
public double radius；
public double diameter；
public void setRadius（double radius）
this.radius = radius；
this.diameter= radius * 2；
}
public double getRadius（） {
return radius；
}
Which statement is true？（）

A. The Mycircle class is fully encapsulated.
B. The diameter of a given MyCircle is guaranteed to be twice its radius.
C. Lines 6 and 7 should be in a synchronized block to ensure encapsulation.
D. The radius of a MyCircle object can be set without affecting its diameter.

你可能感興趣的試題

You want to limit access to a method of a public class to members of the same class. Which access modifier accomplishes this objective？（）

public class Mycircle { public double radius； public double diameter； public void setRadius（double radius） this.radius = radius； this.diameter= radius * 2； } public double getRadius（） { return radius； } Which statement is true？（）

public class Mycircle {
public double radius；
public double diameter；
public void setRadius（double radius）
this.radius = radius；
this.diameter= radius * 2；
}
public double getRadius（） {
return radius；
}
Which statement is true？（）