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Load RSA public key from file
...sa -out private_key.pem 2048
Convert private Key to PKCS#8 format (so Java can read it)
$ openssl pkcs8 -topk8 -inform PEM -outform DER -in private_key.pem -out private_key.der -nocrypt
Output public key portion in DER format (so Java can read it)
$ openssl rsa -in private_key....
Java compiler level does not match the version of the installed Java project facet
...or maven-compiler-plugin. m2e uses these values to determine the project's Java compiler level. A snippet of the POM is shown below:
<build>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source...
Standard concise way to copy a file in Java?
It has always bothered me that the only way to copy a file in Java involves opening streams, declaring a buffer, reading in one file, looping through it, and writing it out to the other steam. The web is littered with similar, yet still slightly different implementations of this type of solution.
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Skip rows during csv import pandas
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5s 15s 20d 6s 14n 10s USGS 08041780 2018-05-06 00:00 CDT 1.98 A
It would be nice if there was a way to automatically skip the n'th row as well as the n'th line.
As a note, I was able to fix my issue with:
import pandas as pd
ds = pd.read_csv(fname, comment='#', sep='\t', heade...
Which is the preferred way to concatenate a string in Python?
... out = bytearray()
for i in source:
out += i
# 10000 loops, best of 3: 98.5 µs per loop
%%timeit out = ""
for i in source:
out += i
# 10000 loops, best of 3: 161 µs per loop
## Repeat the tests with a larger list, containing
## strings that are bigger than the small string caching
## do...
【解决】java.lang.ArrayIndexOutOfBoundsException: length=1; index=-1 a...
使用 CustomWebView 拓展报错：
java.lang.ArrayIndexOutOfBoundsException: length=1; index=-1 at java.util.ArrayList.get(ArrayList.java:439) at com.sunny.CustomWebView.CustomWebView.getIndex(Unknown Source:26) at com.sunny.CustomWebView.CustomWebView.access$200(Unknown Source:0) at com.sunny.C...
What is the difference between 'java', 'javaw', and 'javaws'?
What is the difference between java , javaw , and javaws ?
5 Answers
5
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What to learn for making Java web applications in Java EE 6? [closed]
...f I know that this will be controversial, my advice would be to start with Java EE 6 only. So, grab GlassFish v3 and either get the book Beginning Java EE 6 Platform with GlassFish 3: From Novice to Professional or follow the Java EE 6 tutorial. In my opinion, the book (that I've started to read so ...
Java Reflection: How to get the name of a variable?
Using Java Reflection, is it possible to get the name of a local variable? For example, if I have this:
8 Answers
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URL to load resources from the classpath in Java
In Java, you can load all kinds of resources using the same API but with different URL protocols:
14 Answers
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