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Why do we use Base64?
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Your first mistake is thinking that ASCII encoding and Base64 encoding are interchangeable. They are not. They are used for different purposes.
When you encode text in ASCII, you start with a text string and convert it to a sequence of bytes.
When you encode data in Base64, you sta...
Converting Secret Key into a String and Vice Versa
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You can convert the SecretKey to a byte array (byte[]), then Base64 encode that to a String. To convert back to a SecretKey, Base64 decode the String and use it in a SecretKeySpec to rebuild your original SecretKey.
For Java 8
SecretKey to String:
// create new key
SecretKey secretKey ...
Selecting with complex criteria from pandas.DataFrame
...kos Tavoularis
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How do I display a text file content in CMD?
...aybe this has params you can use...
There is a similar question here: CMD.EXE batch script to display last 10 lines from a txt file
So there is a "more" command to display a file from the given line, or you can use the GNU Utilities for Win32 what bryanph suggested in his link.
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What is the smallest possible valid PDF?
...2F526F6F743C3C2F50616765733C3C2F4B6964735B3C3C2F4D65646961426F785B302030203320335D3E3E5D3E3E3E3E3E3E";
and then
byte[] bytes = hexStringToByteArray(samplepdf);
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public byte[] hexStringToByteArray(String s) {
int len = s.length();
byte[] data = new byte[len / 2];
for (int i = 0; i &l...
Automatically remove Subversion unversioned files
...can also automate this on the command line with TortoiseSVN's TortoiseProc.exe: details in my answer below.
– stevek_mcc
Sep 14 '16 at 21:40
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What is base 64 encoding used for?
I've heard people talking about "base 64 encoding" here and there. What is it used for?
18 Answers
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Terminating a script in PowerShell
...om a function it will return to where ever the function was called from.
Execution of any commands after the call point that it is returned to will continue from that point. If a script is called from the shell and it contains the Return command outside any functions then when it returns to the sh...
Npm Please try using this command again as root/administrator
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You should run cmd.exe as administrator.
Follow the following steps:
Click Start, click All Programs, and then click Accessories.
Right-click Command prompt, and then click Run as administrator.
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Your build failed due to an error in the AAPT stage, not because of an...
大概率是因为项目名称是中文导致的，换成英文的就ok，这个问题先记录下来，后续fun23.cn平台可以解决。
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需要注意的事项：该项目已超过 30MB 的最大大小该项目已超出建议的最大 10 个...