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[解决]Missing Constraint: Bundle-RequiredExecutionEnvironment: J2SE-1....
...nment: J2SE-1.5eclipse-Missing-Constraint原因：eclipse版本太老了，java版本太新了不匹配导致。解决：安装最新的eclipse，地址：https: www eclipse org downloads 参考：https: www eclipse org forums index php t 1089568 原因：eclipse版本太老了，java版本太新...
App Inventor 2 项目合并工具：合并屏幕、合并素材、合并拓展 · App Inventor 2 中文网
...合并完成验证
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AI2合并工具
java写的GUI版本，有基础的同学或linux系统下可以执行 java -jar libs/xxx.jar 运行。
这里直接做好了免安装jdk、一键启动的Windows版，直接点击 AI2MergerTool.exe 即可运行。
开始...
App Inventor 2 项目合并工具：合并多个项目的屏幕、素材及拓展 - App Inve...
AI2合并工具java写的GUI版本，有基础的同学或linux系统下可以执行 java -jar libs/xxx.jar 运行。这里直接做好了免安装jdk、一键启动的Windows版，直接点击 AI2MergerTool.exe 即可运行。开始合并合并工具启动，选择需要合并的2个.aia项目文...
Finding which process was killed by Linux OOM killer
...killed by oom mechanism
dstat --top-oom
--out-of-memory---
kill score
java 77
java 77
java 77
and as per man page
--top-oom
show process that will be killed by OOM the first
...
What new capabilities do user-defined literals add to C++?
...e all structs derive from Object. This decision alone puts .NET far beyond Java's reach when working with primitives, no matter how much boxing/unboxing hacks Java will add to its specification.
Do YOU really need it in C++?
This question is for YOU to answer. Not Bjarne Stroustrup. Not Herb Sutter....
Difference between
...wildcards, e.g. List<Integer>.
Example
Note this example from the Java Generics FAQ. Note how the source list src (the producing list) uses extends, and the destination list dest (the consuming list) uses super:
public class Collections {
public static <T> void copy(List<? supe...
How do I manage MongoDB connections in a Node.js web application?
...ch is NOT the place for a database connection object. (Given the nature of JavaScript I would consider it highly dangerous to mix in anything to an object constructed by library code). So with that you only need to Consider a module that exports two methods. connect = () => Promise and get = () =...
Initialising mock objects - MockIto
...e MockitoAnnotations.initMocks are strictly equivalent solutions. From the javadoc of the MockitoJUnitRunner :
JUnit 4.5 runner initializes mocks annotated with Mock, so that explicit usage of MockitoAnnotations.initMocks(Object) is not necessary. Mocks are initialized before each test method.
Th...
How do you change text to bold in Android?
...lic
You can only use specific fonts sans, serif & monospace via xml, Java code can use custom fonts
android:typeface="monospace" // or sans or serif
Programmatically (Java code)
TextView textView = (TextView) findViewById(R.id.TextView1);
textView.setTypeface(Typeface.SANS_SERIF); //only ...
Fast way to get image dimensions (not filesize)
...s will stored in iFormato,iAlto,iAncho
Now these functions/method using JAVA:
private void ByteStreamImageString(byte[] ByteStream,int[] Frmt,int[] High,int[] Wide) {
High[0] = 0;
Wide[0] = 0;
Frmt[0] = -1;
this.HexImageString = "Error";
if ((int)(ByteStream[0]&0xFF)==1...