SZooo

public class MainActivity extends ActionBarActivity {

	private EditText nameText;
	private EditText pwdText;
	private Button button;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);

SZooo

package com.evasion.listviewdemo;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;

import java.util.ArrayList;

SZooo

首先SAXParserFactory来创建一个SAXParserFactory实例
SAXParserFactory saxParserFactory = SAXParserFactory.newInstance();


然后根据SAXParserFactory实例来创建SAXParser,再从SAXParser中得到一个XMLReader的实例，XMLReader是一个接口
XMLReader xmlReader = saxParserFactory.newSAXParser().getXMLReader();

把自己编写的Handler注册到XMLReader中去，一般最重要的就是ContentHandler
 xmlReader.setContentHandler(ContentHandler);
​

SZooo

interface monitor{
    public void displayText();
    public void displayGraphics();
}   //定义监视器接口
-----------------------------------------------------
class LCD implements monitor{
    public void displayText(){
        System.out.println("this is the lcd screen");
    }