Java
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Implementation of pull-up refresh function in Android system
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Get the status of the SD card under Android and write the file to the SD card
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Java string tool class stringhelper
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Code for obtaining IMEI code and other relevant information in Android
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Java regular expression to determine whether the email address is legal
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Android loading data listview optimized memory implementation
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Monitor the insertion of SD card and read the content under Android system
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SharedPreferences tool class sphepler
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Implementation of Android file browser
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Java counts the number of Chinese characters, English, numbers and special symbols in the string
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Execute HTTP post request through httpclient under Android
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Android get mobile IP address
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Android reads the txt file under the assets file
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Java – how to use reflection to tell a method to have a varargs parameter?
This is a sample code package org.example; import java.lang.reflect.Method; class TestRef { public void tes…… -
How to detect the submit button clicked in multiple submit button scenarios in a single action class?
I have a form in JSP There are two submit buttons: search and add new <s:form name="searchForm" action="employeeAct…… -
java. net. Socketexception: network unreachable connection
I tried to download an XML text file from a web server using this method: static void download (String url,String file…… -
Verify java version compatibility
I have a jar file compiled with JDK 1.7. I want to check whether the Java runtime environment of my jar is 1.7 or upda…… -
Used to represent a number as string, integer All possible characters of Java
In integer In Java, there are the following codes: /** * All possible chars for representing a number as a String */…… -
Java – SSL configuration in Tomcat and APR
I encountered a problem setting my Tomcat using APR native lib, Tomcat: 7.0.42 Java: 1.7.0_40-b43 OS: Centos 6.4 (2.6.…… -
Java – number of elements in ArrayList
How much data can a list can hold at the maximum? 8 Solution ArrayList cannot hold more than integer MAX_ Value is an …… -
Java – NullPointerException reflected when robolectric starts – any hint?
I'm developing an Android project on eclipse and I'm trying to switch from running tests on the simulator / device (ve…… -
Java – is there any way to extract the primary key (or ROWID) using namedparameterjdbctemplate and generatedkeyholder?
I tried to extract ROWID or primary key using spring's namedparameterjdbctemplate and generatedkeyholder I want to do …… -
Java – basic machine learning
I am a novice in machine learning... I am developing a tool in which I need to predict the value of variables accordin…… -
Java – how to use the current date as the input of the function to get the month name
How to create a function to get the current date and return the month name? For example, string MonthName ("September …… -
Is there a Java enum in European countries and languages?
Are there any Java (> 5) enumerations for listing European countries and languages somewhere? But if I can avoid th…… -
Java – what is the difference between jaxp, JDOM, Dom4j and Xerces?
What's the difference between them? It is said that jaxp is just an API specification, which is implemented by JDOM an…… -
Java – can sockets accessed in different programming languages communicate?
Is the socket programming language independent? Can I keep the server written in Java and the client written in C? Sol…… -
Java – the program continues to run despite the interruptedexception
I started learning Java, and now I'm in the concurrency chapter After reading something about concurrency, I tried my …… -
Java – (simple) dateformat, allowing 24:00:00 and 00:00:00 as input
I've been looking for this, but I haven't succeeded so far Do you know if there is a "dateformat" ish class, which wil…… -
2D array problem Java
If I have a 2D array arr [rows] [columns], how can I find the size of rows and columns respectively with arr.length? S…… -
Java – unconditionally execute tasks in ant?
I'm trying to define the task of sending (using echo) messages when the target completes execution, whether the target…… -
Java – sample programs are required to throw interruptedexception
I'm going through Chapter 9 (threads) of Kathy Sierra scjp 1.5, which is mentioned: I just need a sample program to kn……
