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A method to reverse effect of java String.split()? [duplicate]
I am looking for a method to combine an array of strings into a delimited
String. An opposite to split().
16 Answers
...
How to set a default entity property value with Hibernate
...inition:
@Column(name = "myColumn", nullable = false, columnDefinition = "int default 100")
Notice that the string in columnDefinition is database dependent. Also if you choose this option, you have to use dynamic-insert, so Hibernate doesn't include columns with null values on insert. Otherwise...
Does Dart support enumerations?
...in() {
var a = Fruit.apple;
switch (a) {
case Fruit.apple:
print('it is an apple');
break;
}
// get all the values of the enums
for (List<Fruit> value in Fruit.values) {
print(value);
}
// get the second value
print(Fruit.values[1]);
}
The old approach...
GridLayout and Row/Column Span Woe
...id Support package, the layout breaks" -- actually, that was my fault, not converting the required android: attributes to app: ones, using the backport's XML namespace. It does work with the backport.
– CommonsWare
Aug 8 '12 at 23:44
...
Removing numbers from string [closed]
...er.
result = ''.join(no_digits)
As @AshwiniChaudhary and @KirkStrauser point out, you actually do not need to use the brackets in the one-liner, making the piece inside the parentheses a generator expression (more efficient than a list comprehension). Even if this doesn't fit the requirements for ...
How to get IntPtr from byte[] in C#
I want to pass a byte[] to a method takes a IntPtr Parameter in C#, is that possible and how?
8 Answers
...
Getting request payload from POST request in Java servlet
...(inputStream));
char[] charBuffer = new char[128];
int bytesRead = -1;
while ((bytesRead = bufferedReader.read(charBuffer)) > 0) {
stringBuilder.append(charBuffer, 0, bytesRead);
}
} else {
stringBuilder.append(""...
Auto increment in phpmyadmin
...d common practice to set an id number as a primiary key, auto incrementing int. There are alternatives such as using PHP to generate membership numbers for you in a specific format and then checking the number does not exist prior to inserting, however for me personally I'd go with the primary id au...
Choosing the best concurrency list in Java [closed]
...al Lock-Free Doubly-Linked List". It does not implement the java.util.List interface, but offers most methods you would use in a List.
According to the javadoc:
A concurrent linked-list implementation of a Deque
(double-ended queue). Concurrent insertion, removal, and access
operations exec...
MongoDB与内存 - 大数据 & AI - 清泛网移动版 - 专注IT技能提升
...
shell> cat /proc/$(pidof mongod)/limits | grep stack | awk -F 'size' '{print int($NF)/1024}'
如果Stack过大（比如：10240K）的话没有意义，简单对照命令结果中的Size和Rss：
shell> cat /proc/$(pidof mongod)/smaps | grep 10240 -A 10
所有连接消耗的内存加起来会...