Which two statements are true regarding the creation of a default constructor？（） 

1. public class ArrayTest {  2. public static void main...

单项选择题

1. public class ArrayTest { 
2. public static void main （String[]args）  { 
3. float f1[]， f2[]； 
4. f1 = new float [10]； 
5. f2 = f1； 
6. System.out.printIn （“f2[0]=” + f2[0]）； 
7.  } 
8. }  
What is the result？（）  

ClassOne.java  1. package com.abc.pkg1；  2. public clas...

单项选择题

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？（）  

AnInterface is an interface.   AnAdapter0 is a non-abst...

多项选择题

AnInterface is an interface.  
AnAdapter0 is a non-abstract， non-final class with a zero argument constructor.  
AnAdapter1 is a non-abstract， non-final class without a zero argument constructor， but with a constructor that takes one int argument.   
Which two construct an anonymous inner class？（）