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How can I clear previous output in Terminal in Mac OS X?
...unction cls { printf '\33c\e[3J\33c' } line in ~/.profile (or system-wide /etc/profile). This should work for desktop environments in macOS, FreeBSD, Linux etc. Note the extra \33c is for clearing the extra \e[3J literal in non-macOS (basically for Linux/FreeBSD, we only need printf '\33c').
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How to create a memory leak in Java?
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String str=readString(); // read lengthy string any source db,textbox/jsp etc..
// This will place the string in memory pool from which you can't remove
str.intern();
(Unclosed) open streams ( file , network etc... )
try {
BufferedReader br = new BufferedReader(new FileReader(inputFile));
...
accepting HTTPS connections with self-signed certificates
...d by a recognized Certificate Authority (CA) like Verisign , GlobalSIgn , etc., listed on the set of Android Trusted Certificates, I keep getting javax.net.ssl.SSLException: Not trusted server certificate .
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How do I copy a hash in Ruby?
...oning a hash is preventing modification of the original (for immutability, etc).
– K. Carpenter
Feb 10 '15 at 2:24
6
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Find html label associated with a given input
... agents and assistive technologies, so test well and use at your own risk, etc. etc.
Yes, you could also implement this without using jQuery. :-)
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Why switch is faster than if
...tiguous (or mostly contiguous with no large gaps) (case 0: case 1: case 2, etc.), then TableSwitch is used.
If the offsets are spread out with large gaps (case 0: case 400: case 93748:, etc.), then LookupSwitch is used.
The difference, in short, is that TableSwitch is done in constant time because...
How do I render a partial of a different format in Rails?
...at, whereas the simple approach specifies the template engine (ERB/builder/etc) as well.
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Can we pass parameters to a view in SQL?
...create a settings table in your database, with columns Id, Param1, Param2, etc. Insert a row into that table containing the values Id=1,Param1=0,Param2=0, etc. Then you can add a join to that table in your view to create the desired effect, and update the settings table before running the view. If y...
T-SQL CASE Clause: How to specify WHEN NULL
... for null, and can be verified even in SQL Server by using case statements etc.)
SELECT NULL = NULL -- Results in NULL
SELECT NULL <> NULL -- Results in NULL
So there is no true/false answer to the question, instead the answer is also null.
This has many implications, for example in
CAS...
Android AlertDialog Single Button
...tDialog.Builder(this);
builder.setMessage("Look at this dialog!")
.setCancelable(false)
.setPositiveButton("OK", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
//do things
}
});
AlertDialog aler...