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Install Application programmatically on Android
...install prompt:
Intent promptInstall = new Intent(Intent.ACTION_VIEW)
.setDataAndType(Uri.parse("file:///path/to/your.apk"),
"application/vnd.android.package-archive");
startActivity(promptInstall);
source
Intent goToMarket = new Intent(Intent.ACTION_VIEW)
.setData(Uri...
Unable to cast object of type 'System.DBNull' to type 'System.String`
...
ExecuteScalar will return
null if there is no result set
otherwise the first column of the first row of the resultset, which may be DBNull.
If you know that the first column of the resultset is a string, then to cover all bases you need to check for both null and DBNull. Som...
Using pg_dump to only get insert statements from one table within database
...efore the -t if you only want the INSERTs, without the CREATE TABLE etc to set up the table in the first place.
version >= 8.4.0
pg_dump --column-inserts --data-only --table=<table> <database>
share
...
Get unique values from a list in python [duplicate]
...rated by commas. You can get the unique values by converting the list to a set.
mylist = ['nowplaying', 'PBS', 'PBS', 'nowplaying', 'job', 'debate', 'thenandnow']
myset = set(mylist)
print(myset)
If you use it further as a list, you should convert it back to a list by doing:
mynewlist = list(mys...
How to make a Java thread wait for another thread's output?
...ething like this:
//do db work
synchronized(objectYouNeedToLockOn){
//set ready flag to true (so isReady returns true)
ready = true;
objectYouNeedToLockOn.notifyAll();
}
//end thread run method here
The objectYouNeedToLockOn I'm using in these examples is preferably the object that yo...
Teachable Machine 图像分类扩展 · App Inventor 2 中文网
...
MIT App Inventor 官方
巴西圣卡塔琳娜联邦大学（UFSC）
最新版本
20250312（2025年3月）
2.0（2022年8月）
许可证
Apache 2.0
BSD 3
输入模式
视频模式 + 图片模式
仅视...
How do you turn off auto-capitalisation in HTML form fields in iOS?
By default, iOS’s keyboard sets the first letter in text form fields (including type=email ) to uppercase. (At least prior to iOS 5.)
...
Is there a visual profiler for Python? [closed]
I use cProfile now but I find it tedious to write pstats code just to query the statistics data.
12 Answers
...
What's the difference between 'git merge' and 'git rebase'?
...e are new changes on their branch, and you will always end up with a clean set of changes "on the tip" of their branch.
When you merge their branch into your branch, you tie the two branch histories together at this point. If you do this again later with more changes, you begin to create an interlea...
What is the difference between CascadeType.REMOVE and orphanRemoval in JPA?
...s address;
:
}
DIFFERENCE:-
The difference between the two settings is in the response to
disconnecting a relationship. For example, such as when setting the
address field to null or to another Address object.
If orphanRemoval=true is specified the disconnected Address in...