Java
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What is the default GC schedule in Java 6? (1.6.0-25)
I wonder what is the default schedule for GC to run on Java 6 (64 bit) computers? I know it can be triggered without a…… -
Java – how to kill a running thread while waiting?
When I try to kill my bandit thread, some people die, but some people fall into wait() blocking. What is a better way …… -
Java – JAXB generates simple types without restrictions
I am generating my first JAXB data binding I have a schema that contains an XS: simpletype: <xs:simpleType name="NI…… -
Java algorithm for extracting information from string
I'm trying to implement intelligent search in my application For example, find a 28 - year-old Christian male from Bra…… -
Java – get JPopupMenu size before display
I click the right mouse button to display JPopupMenu I want the top right corner of JPopupMenu to be in the click posi…… -
Java – OSGi / equinox, declarative services and deferred loading
I'm trying to use declarative services to create a service package to provide functionality for another package Howeve…… -
Java – how to name getters / setters in Android projects
topic Suppose there is a public class named private int_ Private variable with xtouchdown = 0; What is the getter / se…… -
Java – integrate hibernate validator with wicket
I have some entities, and some fields are annotated with hibernate validator, such as: @Entity public class MyEntity {…… -
Interface in Java
Code 1: public class User1 implements MyInterface { @Override public void doCalculation() { } } public class …… -
How to use JNI in a multithreaded environment_ CreateJavaVm(C)
I am working in JNI using C as my mother tongue I can create (c) shared libraries, and I can call Java functions with …… -
Java – Maven dependency problem – artifact not found in central repository
I'm trying from this site http://www.joptimizer.com/usage.html Build the project I downloaded the source jar file, unz…… -
Java – jmh does not pick up classes for benchmarking
There is a mistake, jmh did not promote my class to the benchmark package com.stecurran.jmh.entry; import org.openjdk…… -
Java – sets a 4-bit nibble in the int type
We need to propose a method to set 4-bit nibbles in int setNibble(0xAAA5,0x1,0); // => 0xAAA1 setNibble(0x56B2,0xF…… -
Java – sort in array
When I try to sort, I have a problem with my method: This is what my code looks like: public void sort() { boolean …… -
Java generics – insert internal type parameters
I'm new to Java I just want to pass comparable < string > into the method parameter of generic type < e exten…… -
Java – messagebodywriter with media type = Application / JSON, GlassFish not found
I am using jax-rs to create a simple restful JSON. My first method works normally, but when I add the second method to…… -
Java – executors do not run all threads
I'm new to Java and I'm trying this I have a method that I want to run in parallel I want 10 threads to call this meth…… -
Java – want to know that create = null instead of out Consequences of close() Out is an instance of fileoutputstream
I want to know the consequences of making the output stream null instead of closing it If I do out = null, will this l…… -
Java – c3p0 prepared declarations are closed for no obvious reason
I'm using c3p0 I created a collection as follows, cpds = new ComboPooledDataSource(); cpds.setJdbcUrl(...); /* connect…… -
Java – convert timestamp to UTC time zone
public static long getCurrentEpochTimeStamp(String timeStamp) throws Exception { public static long getCurrentEpochTim…… -
How to fix “missing return statement” in Java
I'm making a Java method for an Android application that returns the directory where the application should work in an…… -
Java – how do I read files from a jar archive?
See the English answer > How do I read a resource file from a Java jar file? 8 File file = new File("test.jar"); St…… -
Java – SWT – modify window close button (red x)
When the user closes any application window using the window close button (red x) It will cause the widget is disposed…… -
Java – create 2D hash set function
I'm trying to make a 2D hash set I have a loop through integer pairs: ResultSet getAssociations; Statement get…… -
How do I go back to a specific line in Java?
I'm writing code that involves if else statements to ask the user if they want to continue I don't know how to do this…… -
Filling Java beans with opencsv – Code Description
I just started using Java and have a lot of missing knowledge, but I need to write a simple class that will use opencs…… -
Java – why not use a pseudo-random number generator to generate test data?
Test the correctness from the Book Java concurrency in practice, chapter 12.1, especially 12.1 3 test security (the au…… -
Java – Eclipse: get null display
I tried to pop up a dialog box (i.e. a FileDialog) in the Eclipse Plug-in. In fact, I was running the relevant UI laun…… -
Java – find friends of all users: how to implement Hadoop MapReduce?
Say I entered the following: (1,2)(2,1)(1,3)(3,4)(4,1) The output is expected to be as follows: (1,(2,3,4)) -> (1,3…… -
Can I construct arrays in Java without the number of elements?
There are some problems when using arrays in Java If I declare a character array like this, my program will throw an e…… -
Java – running functions on JButton
I'm trying to create a program in Java that uses a robot to press a specific key every few seconds It has a GUI with s……