我无法从此字符串中拆分值:
"Food 1 | Service 3 | Atmosphere 3 | Value for money 1 "
这是我目前的代码:
String rat_values = "Food 1 | Service 3 | Atmosphere 3 | Value for money 1 ";
String[] value_split = rat_values.split("|");
[,F,o,o,d ,, 1 ,, | ,,, S,e,r,v,i,c,e,,3,... ,, A,t,m,o,s,p, h,e,r,e,,3,| ,, V,a,l,u,e,f,o,r ,, m,o,n,e,y ,, 1,]
食物1
服务3
气氛3
物有所值1
我一直坚持在JSP中运行hello world程序.当我启动我的服务器时,它显示资源未找到异常.请帮我解决这个问题.我在下面提到了我的代码
的index.jsp:
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
</body>
</html>
web.xml中
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
id="WebApp_ID" version="2.5">
<display-name>MySample</display-name>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
嗨,我坚持使用复选框从listview中删除多个项目.我可以从列表视图中选择多个项目,但只有所选的第一个项目被删除而其他项目没有被删除.这是我的代码.提前致谢!
public class MainActivity extends Activity
{
ListView lv;
ArrayAdapter<String> adapter;
Button delete;
ArrayList<String> data = new ArrayList<String>();
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
lv = (ListView)findViewById(R.id.listView1);
delete = (Button)findViewById(R.id.button1);
data.add("Windows");
data.add("Android");
data.add("Apple");
data.add("Blackberry");
adapter = new ArrayAdapter<String>(MainActivity.this, android.R.layout.simple_list_item_multiple_choice, data);
lv.setAdapter(adapter);
delete.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v)
{
deleteCheckedItems();
adapter.notifyDataSetChanged();
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu)
{
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_main, menu); …