11. public interface Status { 
12. /* insert code here */ int MY_VALUE = 10； 
13. } 
Which three are valid on line 12？（）

Given the following code：     1） class Parent {     2） ...

单项选择题

Given the following code：    
1） class Parent {    
2） private String name；    
3） public Parent（）{}    
4） } 
5） public class Child extends Parent {    
6） private String department； 
7） public Child（） {} 
8） public String getValue（）{ return name； }    
9） public static void main（String arg[]） {    
10） Parent p = new Parent（）；    
11） } 
12） } 
Which line will cause error？（）   

AButtonispositionedinaFrame.OnlyheightoftheButtonisaffe...

单项选择题A Button is positioned in a Frame. Only height of the Button is affected by the Frame while the width is not. Which layout manager should be used？（）    

class Parent {     String one， two；  public Parent（Stri...

单项选择题

class Parent {    
String one， two； 
public Parent（String a， String b）{    
one = a；    
two = b；    } 
public void print（）{ System.out.println（one）； }    } 
public class Child extends Parent {    
public Child（String a， String b）{    
super（a，b）；    
} 
public void print（）{ 
System.out.println（one + " to " + two）；    
} 
public static void main（String arg[]）{   
 Parent p = new Parent（"south"， "north"）；    
Parent t = new Child（"east"， "west"）；    
p.print（）；    
t.print（）；    
}    
} 
Which of the following is correct？（）