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Is there a way to instantiate a class by name in Java?
...s");
Constructor<?> constructor = clazz.getConstructor(String.class, Integer.class);
Object instance = constructor.newInstance("stringparam", 42);
Both methods are known as reflection. You will typically have to catch the various exceptions which can occur, including things like:
the JVM c...
How to access random item in list?
...a random number with the maximum of the number of items in the ArrayList:
int r = rnd.Next(list.Count);
Display the string:
MessageBox.Show((string)list[r]);
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Declaring variables inside or outside of a loop
...str = String.valueOf(System.currentTimeMillis());
System.out.println(str);
}
}
}
after javac Test.java, javap -c Test you'll get:
public class inside.Test extends java.lang.Object{
public inside.Test();
Code:
0: aload_0
1: invokespecial #1; //Method java/lang...
Replace Line Breaks in a String C#
...self should be able to detect format of source line breaks in a string and convert it to Environment.NewLine \r\n format...
– Dean Kuga
Apr 6 '18 at 20:48
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剖析程序的内存布局 - C/C++ - 清泛网 - 专注C/C++及内核技术
...、栈之类的。记住，这些段只是简单的内存地址范围，与Intel处理器的段没有关系。不管怎样，下面是一个Linux进程的标准的内存段布局：
当计算机开心、安全、可爱、正常的运转时，几乎每一个进程的各个段的起始...
Regex - how to match everything except a particular pattern
...to an error. See this for an example. What the page doesn't say is that it converted /(ac|bd)/ into /(a[^c]?|b[^d]?|[^ab])/. The conversion from a DFA back to a regular expression is not trivial. It is easier if you can use the regular expression unchanged and change the semantics in code, like sugg...
OnItemCLickListener not working in listview
... can also set this programatically with listView.setDescendantFocusability(int focus); where focus is one of ViewGroup.FOCUS_BEFORE_DESCENDANTS, ViewGroup.FOCUS_AFTER_DESCENDANTS or ViewGroup.FOCUS_BLOCK_DESCENDANTS
– Max Worg
Jan 31 '15 at 13:03
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How Do I Get the Query Builder to Output Its Raw SQL Query as a String?
...actual question into consideration, you could actually do the following to convert the current single query instead of all previous queries:
$sql = $query->toSql();
$bindings = $query->getBindings();
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Google Maps v2 - set both my location and zoom in
...e zoom in and go to my location) in one google map?
From a coding standpoint, you would do them sequentially:
CameraUpdate center=
CameraUpdateFactory.newLatLng(new LatLng(40.76793169992044,
-73.98180484771729));
CameraUpdate zoom=C...
git command to move a folder inside another
...
If git converts line endings, this results in the problem described by @Bart. For this to work you have to do the following: git config --global core.autocrlf false
– Mariano Dupont
Dec 16 '16 ...