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What is the maximum length of a Push Notification alert text?
...kes up 20 characters (20 bytes), leaving 236 bytes to put inside the alert string. With ASCII that will be 236 characters, and could be lesser with UTF8 and UTF16.
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Divide a number by 3 without using *, /, +, -, % operators
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Use itoa to convert to a base 3 string. Drop the last trit and convert back to base 10.
// Note: itoa is non-standard but actual implementations
// don't seem to handle negative when base != 10.
int div3(int i) {
char str[42];
sprintf(str, "%d", IN...
(How) can I count the items in an enum?
...
There's not really a good way to do this, usually you see an extra item in the enum, i.e.
enum foobar {foo, bar, baz, quz, FOOBAR_NR_ITEMS};
So then you can do:
int fuz[FOOBAR_NR_ITEMS];
Still not very nice though.
But of course you do realize that just the number of items in an...
How to start new activity on button click
...onCreate(Bundle savedInstanceState) {
Intent intent = getIntent();
String value = intent.getStringExtra("key"); //if it's a string you stored.
}
Don't forget to add your new activity in the AndroidManifest.xml:
<activity android:label="@string/app_name" android:name="NextActivity"/>...
max value of integer
...numbers as they were unsigned (that is, handling all bits correctly).
The character data type char is 16 bits wide, unsigned, and holds characters using UTF-16 encoding (however, it is possible to assign a char an arbitrary unsigned 16 bit integer that represents an invalid character codepoint)
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How do you compare structs for equality in C?
... do the wrong thing at application level. For example, should two UNICODE_STRING structs in Windows be compared shallowly or deeply?
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What is the maximum length of a table name in Oracle?
...ou have a 12.2 DB with compatible set to 11.2.0, is still limits you to 30 chars.
– rtaft
Nov 15 '18 at 15:13
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jQuery.parseJSON throws “Invalid JSON” error due to escaped single quote in JSON
...properly escaped like \' ), jQuery fails to parse an otherwise valid JSON string. Here’s an example of what I mean ( done in Chrome’s console ):
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Reading large text files with streams in C#
...w BufferedStream(fs))
using (StreamReader sr = new StreamReader(bs))
{
string line;
while ((line = sr.ReadLine()) != null)
{
}
}
March 2013 UPDATE
I recently wrote code for reading and processing (searching for text in) 1 GB-ish text files (much larger than the files involved he...
Why doesn't “System.out.println” work in Android?
...t with your log tag it's probably best to define it once as a static final String somewhere.
Log.d(MyActivity.LOG_TAG,"Application started");
There are five one-letter methods in Log corresponding to the following levels:
e() - Error
w() - Warning
i() - Information
d() - Debug
v() - Verbose
wtf...