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How do I time a method's execution in Java?
... sw.getLastTaskName(),sw.getLastTaskTimeMillis());
System.out.println("\n Array of the data for tasks performed « Task Name: Time Taken");
TaskInfo[] listofTasks = sw.getTaskInfo();
for (TaskInfo task : listofTasks) {
System.out.format("[%s]:[%d]\n",
task.getTaskName(), task.getTi...
How to wait in bash for several subprocesses to finish and return exit code !=0 when any subprocess
...ound.
Modify the loop to store the PID of each spawned sub-process into an array, and then loop again waiting on each PID.
# run processes and store pids in array
for i in $n_procs; do
./procs[${i}] &
pids[${i}]=$!
done
# wait for all pids
for pid in ${pids[*]}; do
wait $pid
done
...
What is copy-on-write?
...now what copy-on-write is and what it is used for? The term 'copy-on-write array' is mentioned several times in the Sun JDK tutorials but I didn't understand what it meant.
...
Why are C# 3.0 object initializer constructor parentheses optional?
... very small. Basically just various statement contexts, statement lambdas, array initializers and that's about it. It's easy to reason through all the cases and show that there's no ambiguity. Making sure the IDE stays efficient is somewhat harder but can be done without too much trouble.
This sor...
How to call a parent class function from derived class function?
...essors, and had a print(obj&) method. I need a new class that works on array-of-obj but everything else is the same. Composition results in a lot of duplicated code. Inheritance minimizes that, in print(array-of-obj&) loop calling print(obj&), but don't want clients to call print(obj&am...
Clone() vs Copy constructor- which is recommended in java [duplicate]
...d it quite well. Doug Lea doesn't even use clone() anymore except to clone arrays (artima.com/intv/bloch13.html).
– polygenelubricants
Mar 11 '10 at 19:45
2
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What's the difference between the data structure Tree and Graph?
...ng. A tree can be represented with a non-recursive data structure (e.g. an array of edges; a full tree, like that underlying a binary heap, can be represented very compactly in an array; there are other succinct representations etc. etc.), but probably the most popular and useful way to represent th...
Get parts of a NSURL in objective-c
...col, the host and the first path component. (The element at index 0 in the array returned by -[NSString pathComponents] is simply "/", so you'll want the element at index 1. The other slashes are discarded.)
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Collections.emptyMap() vs new HashMap()
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From Effective Java, Item #43 - "Return empty arrays or collections, not null" demonstrates returning an empty collection and perhaps even demonstrates using these emptyList(), emptySet(), and emptyMap() methods on the Collections class to get an empty collection that al...
How to use setArguments() and getArguments() methods in Fragments?
...ments
Bundle bundle=getArguments();
//here is your list array
String[] myStrings=bundle.getStringArray("elist");
}
}
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