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分享a problem about anonymous inner!!
15. Which of the following statements are true?
A) An anonymous class cannot have any constructors
B) An anonymous class can only be created within the body of a method
C) An anonymous class can only access static fields of the enclosing class
D) An anonymous class instantiated and declared in the same place.
C)为什么不对？能否举个例子？
A) An anonymous class cannot have any constructors
B) An anonymous class can only be created within the body of a method
C) An anonymous class can only access static fields of the enclosing class
D) An anonymous class instantiated and declared in the same place.
C)为什么不对？能否举个例子？
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item 2001-11-28
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give me fen!
dennis_woo 2001-11-26
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说得都对，以下是我的测试结果以供大家参考：
new B(){ void abstractB(){
System.out.println(strStatic);//静态
System.out.println(unStatic);//非静态
System.out.println(_STR);//final
method1();//method of the enclosing class
};
};
new B(){ void abstractB(){
System.out.println(strStatic);//静态
System.out.println(unStatic);//非静态
System.out.println(_STR);//final
method1();//method of the enclosing class
};
};
spczhou 2001-11-26
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f.addMouseMotionListener ( new MouseMotionAdapter() {
public void mouseDragged (MouseEvent e) {
String s = "Mouse dragging: X = " + e.getX() + " Y = " + e.getY();
tf.setText (s);
}
} );
注意tf，它可不是static
public void mouseDragged (MouseEvent e) {
String s = "Mouse dragging: X = " + e.getX() + " Y = " + e.getY();
tf.setText (s);
}
} );
注意tf，它可不是static
jsyx 2001-11-26
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应该还可以访问final
