When I try opening Eclipse, a pop-up dialog states: Failed to load the JNI shared library "C:/JDK/bin/client/jvm.dll"`. Following this, Eclipse force closes. Here's a few points I'd like to make: I checked to see if anything exists at that path. It does exist. My Eclipse and Java SE Development Kit are both 64-bit. I checked my system, and it can handle 64-bit. I&#
当我尝试打开Eclipse时，弹出对话框显示： 无法加载JNI共享库“C：/JDK/bin/client/jvm.dll”。 在此之后，Eclipse部队关闭。 以下是我想说的几点： 我检查了一下在这条路上是否有任何东西存在。 它确实存在。 我的Eclipse和Java SE开发工具包都是64位的。 我检查了我的系统，它可以处理64位。 我在Google和Stack Overflow上搜索了这个问题，我发现的唯一答案是下载32位版本的JDK和Eclipse。 下载32位版本是我只想
I have a question that, I know, has been widely discussed about, but in my opinion, there is one aspect that still needs clarification. I am creating a web-application with a multilanguage database, I already found some good-practices articles (such as this) and answers here in stack overflow like this. So I decided to use a main table with the IDs of my items and another table with the trans
我有一个问题，我知道已经被广泛讨论，但在我看来，还有一个方面还需要澄清。 我正在用多语言数据库创建一个Web应用程序，我已经找到了一些好的实践文章（比如这个），并在这里以堆栈溢出的方式回答这个问题。 所以我决定使用一个带有我的物品ID和另一个表格以及每个物品的翻译的主表格，比方说，比如说 Content ContentTranslation 要么 Category CategoryTranslation 等等。 现在我在做什么？ 我只是从数据库中获取
I'm trying to test the correct information given from DB using the services and the correct logic of the methods. In this simple example, I'm only using the statement assertEquals to compare the id given for the roleService , but I'm still getting errors. I have the following code: [UPDATED] Test method: @RunWith(SpringJUnit4ClassRunner.class) @ContextConfiguration(value = { "c
我试图使用服务和方法的正确逻辑来测试从DB给出的正确信息。 在这个简单的例子中，我只使用assertEquals语句来比较roleService的id，但我仍然收到错误。 我有以下代码： [更新] 测试方法： @RunWith(SpringJUnit4ClassRunner.class) @ContextConfiguration(value = { "classpath:applicationContext.xml" }) @Transactional @WebAppConfiguration @ComponentScan(basePackages ={ "com.project.surveyengine" },
What is an elegant way to find all the permutations of a string. Eg ba , would be ba and ab , but what about abcdefgh ? Is there any example Java implementation? public static void permutation(String str) { permutation("", str); } private static void permutation(String prefix, String str) { int n = str.length(); if (n == 0) System.out.println(prefix); else { for (int
什么是查找字符串所有排列的优雅方式。 例如ba ，会是ba和ab ，但是abcdefgh呢？ 有没有任何Java实现的例子？ public static void permutation(String str) { permutation("", str); } private static void permutation(String prefix, String str) { int n = str.length(); if (n == 0) System.out.println(prefix); else { for (int i = 0; i < n; i++) permutation(prefix + str
I have a class public class FancyView extends View implements View.OnTouchListener { I need to get the height/width of the view. (It could change with, say, device rotation. Also, of course, the height/width is not known at initialization time.) You can do this... So, actually within the class FancyView just override onLayout(changed) @Override protected void onLayout(boolean changed, in
我有一堂课 public class FancyView extends View implements View.OnTouchListener { 我需要获取视图的高度/宽度。 （它可以随着设备旋转而改变，当然，在初始化时，高度/宽度是未知的。） 你可以这样做... 所以，实际上在类FancyView只是重写onLayout(changed) @Override protected void onLayout(boolean changed, int left, int top, int right, int bottom) { super.onLayout(changed, left, top, right, botto
How would you multiply a number by 3.5 without using * , / or % , operators? The number may be signed or unsigned. 添加次数= n双和= 0; for(int i=0;i<n;i++) { sum=sum+3.5; } Math.log(Math.pow(Math.exp(x), 3.5))
如果不使用* ， /或%操作符，你会如何乘以3.5？ 该号码可以是有符号的或无符号的。 添加次数= n双和= 0; for(int i=0;i<n;i++) { sum=sum+3.5; } Math.log(Math.pow(Math.exp(x), 3.5))
I have a terrain generated of a Perlin Fractal Noise pattern that generates quite remarkable terrain. The problem I'm having is some veird lines going across both X and Z coordinates, I'm thinking it has to do with the fractal generation but as I generated a 2D picture of it I couln't see any artefacts. Artefact lines The generation of the terrain is done by splitting up the terra
我有一个由Perlin分形噪音模式产生的地形，可以产生相当不寻常的地形。 我遇到的问题是一些经过X和Z坐标的奇怪线条，我认为它与分形生成有关，但是当我生成它的2D图片时，我没有看到任何伪影。 人造线 地形的产生是通过将地形分割成块来完成的，而块依次分解成瓦，这取决于分辨率的大小。 每块瓷砖都以类似的方式计算每个角落的四个角落： float corner1 = mapHeight * fractal( x * tileSize +( posX * (mapSize) ) , z *
I have a bi-directional one-to-many relationship defined between Parent and Child classes. I'm looking to execute a query such that I can return a single parent, and a subset of its children in a bean. public class Parent { private int id; private Set<Child> children = new HashSet<Child>(0); // other fields + getters and setters } public class Child { private P
我在Parent和Child类之间定义了一个双向的一对多关系。 我期待执行一个查询，以便我可以返回一个父对象，以及它的一个子对象。 public class Parent { private int id; private Set<Child> children = new HashSet<Child>(0); // other fields + getters and setters } public class Child { private Parent parent; private int age; // other fields + getters and setters } 我期
I am working on Hibernate criteria query which having parent-child one-to-many relationship. I am fetching parent records from DB where I do not want the deleted child records to be fetched along with the parent records. To apply deleted restriction on the child I have used, criteria.createAlias("childsList", "child"); and criteria.add(Restrictions.eq("child.deleted", false)); The problem i
我正在研究具有父 - 子一对多关系的Hibernate标准查询。 我从DB中获取父记录，我不想将删除的子记录与父记录一起提取。 为了对我已经使用过的孩子实施已删除的限制， criteria.createAlias("childsList", "child"); 和 criteria.add(Restrictions.eq("child.deleted", false)); 问题是在结果集我甚至得到了孩子的删除记录。 但是，如果我使用由休眠日志生成的查询并在Mysql 工作台中运行该查询，那么它会通过排除已删除的
One component of my application logs the parameters that an User send with an http URL. The mapping is as follow: public class ActivityLog { @Column(name = "id") private Long id; @OneToMany(mappedBy="activityLog", fetch = FetchType.LAZY, cascade = CascadeType.ALL) protected List<ActivityLogParameter> activityLogParameters = new ArrayList<ActivityLogParameter>(); }
我的应用程序的一个组件记录用户使用http URL发送的参数。 映射如下： public class ActivityLog { @Column(name = "id") private Long id; @OneToMany(mappedBy="activityLog", fetch = FetchType.LAZY, cascade = CascadeType.ALL) protected List<ActivityLogParameter> activityLogParameters = new ArrayList<ActivityLogParameter>(); } public class ActivityLogParameter { @Colum