大约有 31,100 项符合查询结果（耗时：0.0414秒） [XML]
ERROR:'keytool' is not recognized as an internal or external command, operable program or batch file
... executable is in is on your %PATH% environment variable.
For example, on my Windows 7 machine, it is in
C:\Program Files (x86)\Java\jre6\bin, and my %PATH% variable looks like C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\Program Files (x86)\Java\jre6\bin;C:\WINDOWS\System32\Windows...
Undo a Git merge that hasn't been pushed yet
Within my master branch, I did a git merge some-other-branch locally, but never pushed the changes to origin master. I didn't mean to merge, so I'd like to undo it. When doing a git status after my merge, I was getting this message:
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What are the best practices for SQLite on Android?
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Concurrent Database Access
Same article on my blog(I like formatting more)
I wrote small article which describe how to make access to your android database thread safe.
Assuming you have your own SQLiteOpenHelper.
public class DatabaseHelper extends SQLiteOpenHel...
JavaFX and OpenJDK
...rying to decide whether I could switch to JavaFX for the user interface of my Java application. Most of my users would be using the Oracle JRE, which has JavaFX integrated these days. However, some are using OpenJDK (on linux). This (old) question suggests that OpenJDK deals very badly with JavaFX...
Difference between repository and service?
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Would it be okay to do the following then: My repository has all my complex database calls, then in my service i inject the repository as a dependency. Now I have easily testable code and separated my concerns, because my service does not know how the DB calls are don...
Animate the transition between fragments
...n and setXFraction methods on your view subclass, like this:
public class MyFrameLayout extends FrameLayout {
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public float getXFraction() {
return getX() / getWidth(); // TODO: guard divide-by-zero
}
public void setXFraction(float xFraction) {
// TODO: cache wid...
How to start working with GTest and CMake
I have recently been sold on using CMake for compiling my C++ projects, and would now like to start writing some unit tests for my code. I have decided to use the Google Test utility to help with this, but require some help in getting started.
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Creating a “logical exclusive or” operator in Java
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This escaped my memory too when I wrote my post, but I think you CAN use ^ as a logical operator (as well as bitwise).
– Neil Coffey
Apr 7 '09 at 17:06
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How do I loop through a list by twos? [duplicate]
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You can also use this syntax (L[start:stop:step]):
mylist = [1,2,3,4,5,6,7,8,9,10]
for i in mylist[::2]:
print i,
# prints 1 3 5 7 9
for i in mylist[1::2]:
print i,
# prints 2 4 6 8 10
Where the first digit is the starting index (defaults to beginning of list or 0)...
Add only non-whitespace changes
I have my text editor to automatically trim trailing whitespace upon saving a file, and I am contributing to an open source project that has severe problems with trailing whitespace.
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