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How to serialize an object into a string
I am able to serialize an object into a file and then restore it again as is shown in the next code snippet. I would like to serialize the object into a string and store into a database instead. Can anyone help me?
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Is there any difference between “!=” and “” in Oracle Sql?
...S - most of them support both styles):
Here is the current SQL reference: https://docs.oracle.com/database/121/SQLRF/conditions002.htm#CJAGAABC
The SQL standard only defines a single operator for "not equals" and that is <>
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Eclipse: Referencing log4j.dtd in log4j.xml
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<!DOCTYPE log4j:configuration PUBLIC
"-//APACHE//DTD LOG4J 1.2//EN" "http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/xml/doc-files/log4j.dtd">
It is similar to @FrVaBe's response, but on the plus side, does not require any further Eclipse configuration (i.e., if you're sharin...
Differences between lodash and underscore [closed]
Why would someone prefer either the lodash.js or underscore.js utility library over the other?
12 Answers
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Catch all JavaScript errors and send them to server
...rowser strings to more human-readable descriptions, I copy-paste them into https://developers.whatismybrowser.com/useragents/parse/
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Reading Excel files from C#
...ou can read the data via ADO.NET. See the connection strings listed here:
http://www.connectionstrings.com/?carrier=excel2007
or
http://www.connectionstrings.com/?carrier=excel
-Ryan
Update: then you can just read the worksheet via something like select * from [Sheet1$]
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Assert equals between 2 Lists in Junit
...ort static org.junit.Assert.*;
import static org.hamcrest.CoreMatchers.*;
http://junit.org/junit4/javadoc/latest/org/junit/Assert.html#assertThat(T, org.hamcrest.Matcher)
http://junit.org/junit4/javadoc/latest/org/hamcrest/CoreMatchers.html
http://junit.org/junit4/javadoc/latest/org/hamcrest/core/I...
Reading a huge .csv file
I'm currently trying to read data from .csv files in Python 2.7 with up to 1 million rows, and 200 columns (files range from 100mb to 1.6gb). I can do this (very slowly) for the files with under 300,000 rows, but once I go above that I get memory errors. My code looks like this:
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How can I read a large text file line by line using Java?
I need to read a large text file of around 5-6 GB line by line using Java.
21 Answers
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In what cases do I use malloc and/or new?
I see in C++ there are multiple ways to allocate and free data and I understand that when you call malloc you should call free and when you use the new operator you should pair with delete and it is a mistake to mix the two (e.g. Calling free() on something that was created with the new ...