多项选择题
A. public interface Person { } public class Employee extends Person { }
B. public interface Shape { } public class Employee extends Shape { }
C. public interface Color { } public class Employee extends Color { }
D. public class Species { } public class Animal (private Species species;)
E. interface Component { } Class Container implements Component ( Private Component[ ] children; )
多项选择题 public class MethodOver { public void setVar (int a, int b, float c) { } } Which two overload the setVar method?()
多项选择题 public class ConstOver { public ConstOver (int x, int y, int z) { } } Which two overload the ConstOver constructor?()
单项选择题 public class test { public static void add3 (Integer i) int val = i.intValue ( ); val += 3; i = new Integer (val); } public static void main (String args [ ] ) { Integer i = new Integer (0); add3 (i); system.out.printIn (i.intValue ( ) ); } What is the result?()