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For a given Servlet Response response, which two retrieve an object for writing text data? () public static Iterator reverse(List list) {  Collections.reverse(list);  return list.iterator();  }  public static void main(String[] args) {  List list = new ArrayList();  list.add(” 1”); list.add(”2”); list.add(”3”);  for (Object obj: reverse(list))  System.out.print(obj + “,”);  }  What is the result?()  10. class Line {  11. public static class Point { }  12. }  13.  14. class Triangle {  15. // insert code here  16. }  Which code, inserted at line 15, creates an instance of the Point class defined in Line?()  Given the security constraint in a DD:// 101. 102. 103.Foo 104./Bar/Baz/* 105.POST 106. 107. 108.DEVELOPER 109. 110. And given that "MANAGER" is a valid role-name,which four are true for this security constraint?() 下面的哪些声明是合法的?() class Test2{   public static void main(String [] args){   boolean x=true;   boolean y=false;   short z=42;   if((x==true)&&y=true))z++;   if((y==true||++z=44))z++;   System.out.println(“z=”+z);  }  }   结果是什么?()   关于包的描述错误的是() Which two classes or interfaces provide a getSession method?() class ThreadBoth extends Thread implements Runnable {  public void run(){ System.out.print("hi "); }  public static void main(String [] args){  Thread t1 = new ThreadBoth();   Thread t2 = new Thread(t1);  t1.run();  t2.run();  }  }  结果为:()  Which declarations of identifiers are legal?()