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Query EC2 tags from within instance
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Is the ec2-describe-tags command easily available? Supposedly it's in the ec2-api-tools package, but I got nothing but 404's when I tried to install it.
– Edward Falk
Apr 8 '12 at 19:39
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Difference between HTML “overflow : auto” and “overflow : scroll”
When I was studying the overflow property's values, I came across these two values: auto and scroll , which adds scrollbar(s) if the content overflows the element.
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InputStream from a URL
...ur original code uses FileInputStream, which is for accessing file system hosted files.
The constructor you used will attempt to locate a file named a.txt in the www.somewebsite.com subfolder of the current working directory (the value of system property user.dir). The name you provide is resolved ...
close vs shutdown socket?
In C, I understood that if we close a socket, it means the socket will be destroyed and can be re-used later.
9 Answers
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Android - Start service on boot
... I have everything set up correctly to start an IntentService when Android OS boots. Unfortunately it is not starting on boot, and I'm not getting any errors. Maybe the experts can help...
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Encrypt Password in Configuration Files? [closed]
...ters;
import java.security.GeneralSecurityException;
import java.security.NoSuchAlgorithmException;
import java.security.spec.InvalidKeySpecException;
import java.util.Base64;
import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.Iv...
Determining the current foreground application from a background task or service
...roundTaskAppName = foregroundAppPackageInfo.applicationInfo.loadLabel(pm).toString();
This requires an additional permission in activity menifest and works perfectly.
<uses-permission android:name="android.permission.GET_TASKS" />
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Check if a method exists
...j respondsToSelector:@selector(methodName:withEtc:)]) {
[obj methodName:123 withEtc:456];
}
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cannot load such file — zlib even after using rvm pkg install zlib
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$ rvm reinstall 1.9.3
[Edit] As commenter @chrisfinne mentions, on CentOS/RedHat based systems:
$ sudo yum install zlib-devel
$ rvm reinstall 1.9.3
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How can I ask the Selenium-WebDriver to wait for few seconds in Java?
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123
Well, there are two types of wait: explicit and implicit wait.
The idea of explicit wait is
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