包含标签：Java 的文章
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Java – Android – how to delete an item from a cursor?
Suppose I use the following cursor to get someone's call record: String[] strFields = { android.provider.CallLog.C…… -
How do I get the second word from a string?
Take these examples Smith John Smith-Crane John Smith-Crane John-Henry Smith-Crane John Henry I want the first word af…… -
Java – which is faster, int to string or string to int?
This seems to be a fairly basic problem. I apologize in advance I'm writing an Android application that uses a set of …… -
Java – abstract and anonymous classes
See English answers > Creating the instance of abstract class or anonymous class 8 abstract class Two { Two() {…… -
Java library size
If I give two Java libraries in jar format, one has no fancy things, and the other has a lot, most of them will not be…… -
Java – expect this loop to be infinite, but it’s not
This is my java code: public class Prog1 { public static void main(String[] args) { int x = 5; whi…… -
Java – does a 32-bit process need more memory when running on a 64 bit system?
I have a Java application that is quite memory hungry If I run the same application on 64 bit Windows XP Professional …… -
Java Concurrent modification exception
I wrote the following code, resulting in concurrent modification exceptions How can I prevent it? Our idea is to escap…… -
Java – Maven assembly plug-in Chmod output folder
I'm trying to use a maven assembly plug-in like this to build the zip of my project jar and all the libraries needed t…… -
Java – general reflection assistant method for equals and hashcode
I'm considering creating a reflection helper for equals and hashcode >In the case of equals, the helper method find…… -
Field assignment in Java foreach declaration
I know that the foreach loop used in the following example cannot be compiled But does anyone know why fields are not …… -
Java – the most effective idiom for reading only one integer from a file?
Trying to solve Facebook's Puzzle "happiness hop", http://www.facebook.com/careers/puzzles.php?puzzle_id=7 I only read…… -
Java – why reference the base class when I can access all methods by referencing subclasses?
I'm learning java concepts Anyone can give me the actual concept. Why do we have to assign subclass instances to base …… -
Java list best practices
I need some containers to hold elements. If I'm going to try to get the size () I element, I'll get the element number…… -
Java – business rules – where are they in OOP?
I have a lesson: timetable public class Schedule { private int locationNum; private int cost; private String costReas…… -
Java – finite state machine program
My task is to create a small program that can read the definition of FSM from the input, read some strings from the in…… -
Java – in general, when any one works, which is better, a HashMap or a hash table?
I occasionally use hash tables in several languages, but I encounter Java maps while browsing some code I checked the …… -
From ArrayList – Java updates jlabel every x seconds
I have a simple java program, which reads a text file, splits it with "" (space), displays the first word, waits 2 sec…… -
Java – select the ith smallest element from the array
I have a divide and conquer method to find the ith smallest element from the array This is the code: public class rand…… -
Java – Android and gson throw no args constructor not found exception
There is a gson problem in my android app JSON input [ {"id":"1202","parent_id":"0","agrpcount":"0","disp_order":"…… -
Java – can I determine whether the data is in English or Chinese?
Can you determine whether the data is in English or Chinese? Solution For example, this can be done using statistical …… -
Java – why do I need synchronization?
I'm trying to fill some shameful gaps in my knowledge of Java threads, and I'm reading Java concurrency in practice in…… -
Java – multiple counts in a single query – Oracle
I need to calculate two data in the same table for two time periods SELECT COUNT(CASE WHEN click_date…… -
Writing bash scripts from Java
I have a java program that writes bash scripts Unfortunately, when saving this script, I need to modify it (Ubuntu 10.…… -
Java – what did I miss, or varargs break arrays asList？
private void activateRecords(long[] stuff) { private void activateRecords(long[] stuff) { ... api.activateReco…… -
Java: how do I close another JFrame when I open it?
My program starts with a picture with a text field in JFrame I want to close the picture JFrame and open another JFram…… -
Java – how to set Maven for two separate projects that depend on the same jar
If you answer this question elsewhere, please blame me and point out the right direction I am new to Maven and try to …… -
Java – cache in C accessed through JNI
Does building an LRU type cache in C / C + + and letting Java access it through JNI help improve performance? Solution…… -
Java – Android layout files do not allow characters such as &, <, >
When I try to use &, <, > as main XML and strings XML, which returns an error I want to mean "&" and "&l…… -
Java – dependency injection: should dependency objects be passed as constructor args?
Video here It explains what it should be How to explain dependency injection to a 5-year-old? So I'm confused now Solu…… -
To build a Java based stock trading application, you need to point to the technology to be used
I am using Java (with jQuery front end) to build an application that needs to communicate with third-party application…… -
Nsurlconnection – variable nshtturlresponse or nsurlresponse
I need to modify the response header in the nsurlresponse Is that possible? Solution I just talked about it with my fr……