Java 归档 - Page 130 of 655

BlackBerry JDE ArrayList?

BlackBerry JDE does not contain Java util. ArrayList, even if it knows Java util？ What's going on? Does BB have the s……

Java

2020-08-19

Java – socket and datainputstream

I'm trying to understand this code DataInputStream stream = new DataInputStream( new ByteArrayI……

Java

2020-08-19

Java – InputStream that does not receive EOF

I tried to send an image from my Android device to my computer through a socket The problem is that the input stream o……

Java

2020-08-19

Java – the difference between “instanceof list” and “O instanceof list “

I don't think there is any difference between the following: Object o = new LinkedList<Long>(); System.out.……

Java

2020-08-19

Java – what does the “this” context mean?

I checked many Android tutorials through the Internet In these tutorials, they use this context everywhere I know what……

Java

2020-08-19

Java – convert string to list

Is this the correct way to convert a string to a list? List styles = (List)request.getParameter("styles"); Model ……

Java

2020-08-19

Java conversion / classloader problem

The following is a simplified version of the problem: SomeClass c = (SomeClass) obj.getSomeClassParent() Not always, e……

Java

2020-08-19

Java – refactoring multiple if else conditions in a method

I'm refactoring my existing code It actually works, but it's a bit confusing. Multiple if else conditions check the va……

Java

2020-08-19

Converting ANSI characters to UTF-8 in Java

Is there any way to convert ANSI strings to UTF using Java I have one using readutf & amp; Custom serializer for T……

Java

2020-08-19

In Java, why do you put parentheses before the aray name?

I was told int[] numbers and int numbers[] Is equivalent I've only seen the former If so, what is the motivation for w……

Java

2020-08-19

Java – Comparison of two strings

I have the following code: int t = s.length()-1; int g = 0; for (int i=0; i < s.length(); i++){ i……

Java

2020-08-19

JPA criteriabuilder case query

Can anyone provide an example of how to write a case query using criteriabuilder? Solution The following is a sample c……

Java

2020-08-19

Java – is resultset thread safe

Is resultset thread safe? My problem arises because in my program, I have used different statements for each query. I ……

Java

2020-08-19

Java inheritance and composition (implementation stack)

I want to implement a stack in Java (using list interface: interface list) I want to implement it in two different way……

Java

2020-08-19

Java – JDBC and threads

I have a program that needs to query the database within a given time interval, perform some operations through the re……

Java

2020-08-19

Using XML as a database in Java

I want to use an XML file as a database I want to store the ID and its corresponding string path Like: <item> ……

Java

2020-08-19

Java – how to convert a floating point number to the nearest fraction represented by a byte numerator and denominator?

How to write an algorithm that gives floating-point numbers and try to express them as accurately as possible using nu……

Java

2020-08-19

Java – add segment independent text to legend in JfreeChart piechart

Is there any way to include some arbitrary text in the legend in JfreeChart piechart? I know that a piesection label g……

Java

2020-08-19

Java – abstract and anonymous classes

See English answers > Creating the instance of abstract class or anonymous class 8 abstract class Two { Two() {……

Java

2020-08-19

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

2020-08-19

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

2020-08-19

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

2020-08-19

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

2020-08-19

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

2020-08-19

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……

Java

2020-08-19

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

2020-08-19

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

2020-08-19

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

2020-08-19

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

2020-08-19

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……

Java

2020-08-19

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

2020-08-19

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

2020-08-19

搜索内容

BlackBerry JDE ArrayList?

Java – socket and datainputstream

Java – InputStream that does not receive EOF

Java – the difference between “instanceof list” and “O instanceof list “

Java – what does the “this” context mean?

Java – convert string to list

Java conversion / classloader problem

Java – refactoring multiple if else conditions in a method

Converting ANSI characters to UTF-8 in Java

In Java, why do you put parentheses before the aray name?

Java – Comparison of two strings

JPA criteriabuilder case query

Java – is resultset thread safe

Java inheritance and composition (implementation stack)

Java – JDBC and threads

Using XML as a database in Java

Java – how to convert a floating point number to the nearest fraction represented by a byte numerator and denominator?

Java – add segment independent text to legend in JfreeChart piechart

Java – abstract and anonymous classes

Java library size

Java – expect this loop to be infinite, but it’s not

Java – does a 32-bit process need more memory when running on a 64 bit system?

Java Concurrent modification exception

Java – Maven assembly plug-in Chmod output folder

Java – general reflection assistant method for equals and hashcode

Field assignment in Java foreach declaration

Java – the most effective idiom for reading only one integer from a file?

Java – why reference the base class when I can access all methods by referencing subclasses?

Java list best practices

Java – Android – how to delete an item from a cursor?

How do I get the second word from a string?

Java – which is faster, int to string or string to int?

Categories

Recent Posts

Tags