assignment3.java

为什么这个网站要弄这么麻烦啊？？真是搞不明白

public class Assignment3
{
	public  static void main(String args[])
	{
		Tokenizer a = new Tokenizer();
		NodeList list_1 = new NodeList();
		String s = a.nextWord();
		while (s!="")
		{
			if (s.length()>2)
				list_1.insertLast(s);
			s = a.nextWord();
		}
		System.out.println("Total number of words of more than two characters = "+list_1.size());
		
		NodeList list_2 = new NodeList();
		int num = list_1.size();
		Position pos1 = list_1.first();
		Position pos2 = null;

		while (!(list_1.isLast(pos1)))
		{
			pos2 = list_1.after(pos1);
			String str1 =(String)pos1.element();
			//System.out.println(str1);
			char chr1 = str1.charAt(0);
			if ((chr1!='A') && (chr1!='E') && (chr1!='I') && (chr1!='O') && (chr1!='U')) //begin with a consonant
			{
				list_1.remove(pos1);
				
				list_2.insertLast(str1);
			}
			pos1 = pos2;
		}
		pos1 = list_1.last();//check the last word in list1;
		String str1 =(String)pos1.element();
			//System.out.println(str1);
			char chr1 = str1.charAt(0);
			if ((chr1!='A') && (chr1!='E') && (chr1!='I') && (chr1!='O') && (chr1!='U')) //begin with a consonant
			{
				list_1.remove(pos1);
				
				list_2.insertLast(str1);
			}
			//System.out.println(list_1.size());
		System.out.println("Total number of words starting with a consonant = "+list_2.size());

		BinarySearchTree bst = new BinarySearchTree(new Comparator());
		
		pos1 = list_1.first();
		while (!(list_1.isLast(pos1)))
		{
			bst.insertItem((String)pos1.element(),new Integer(1));
			pos1 = list_1.after(pos1);
		}		
		bst.insertItem(pos1.element(),new Integer(1));
		
		PrintWordTree.inorder(bst.T, bst.T.root());
		System.out.println("Total number of different words = "+bst.size());
	}
}