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Is Integer Immutable
...Immutable does not mean that a can never equal another value. For example, String is immutable too, but I can still do this:
String str = "hello";
// str equals "hello"
str = str + "world";
// now str equals "helloworld"
str was not changed, rather str is now a completely newly instantiated objec...
Indent multiple lines quickly in vi
...er summarises the other answers and comments of this question, and it adds extra information based on the Vim documentation and the Vim wiki. For conciseness, this answer doesn't distinguish between Vi and Vim-specific commands.
In the commands below, "re-indent" means "indent lines according to yo...
Convert a python dict to a string and back
...n the program is run again.
How would I convert a dictionary object into a string that can be written to a file and loaded back into a dictionary object? This will hopefully support dictionaries containing dictionaries.
...
How to set TextView textStyle such as bold, italic
... have two options:
Option 1 (only works for bold, italic and underline):
String s = "<b>Bolded text</b>, <i>italic text</i>, even <u>underlined</u>!"
TextView tv = (TextView)findViewById(R.id.THE_TEXTVIEW_ID);
tv.setText(Html.fromHtml(s));
Option 2:
Use a Spa...
Find all elements on a page whose element ID contains a certain text using jQuery
...elements
});
If you want to select elements which id is not a given string
$("input[id!='DiscountType']").each(function (i, el) {
//It'll be an array of elements
});
If you want to select elements which name contains a given word, delimited by spaces
$("input[name~=...
What is wrong with using goto? [duplicate]
...urn can be used instead of goto to jump out of nested loops. For example, extract the nested loops into a new function and return from there when the condition that triggers the goto is satisfied. I only see goto being used only to get an extra bit of performance
– mljrg
...
Truncate Two decimal places without rounding
...t it to an Integer. The question would be why you would want to incur that extra overhead anyway since Truncate returns Decimal integrals anyway. Just do something like: decimal step = (decimal)Math.Pow(10, precision); return Math.Truncate(step * value) / step;
– Sarel Esterhu...
Create the perfect JPA entity [closed]
...tionship (say OneToOne) and auto-generate Equals() or hashCode() or even toString() you will get caught in this stackoverflow exception.
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How to “return an object” in C++?
...ll probably optimize the call to the copy constructor, so there will be no extra overhead. (Like dreamlax pointed out in the comment).
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How to get unique device hardware id in Android? [duplicate]
...ations.html
ANDROID_ID
import android.provider.Settings.Secure;
private String android_id = Secure.getString(getContext().getContentResolver(),
Secure.ANDROID_ID);
The above is from the link @ Is there a unique Android device ID?
More specif...