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Why am I not getting a java.util.ConcurrentModificationException in this example?
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Here's why:
As it is says in the Javadoc:
The iterators returned by this class's iterator and listIterator
methods are fail-fast: if the list is structurally modified at any
time after the iterator is created, in any way except through the
iterator...
What is the best Java email address validation method? [closed]
What are the good email address validation libraries for Java? Are there any alternatives to commons validator ?
19 Answe...
Android Studio - Ambiguous method call getClass()
...ac). This will navigate to a path such as $ANDROID_HOME/sources/android-20/java/lang/Object.java. Now, within IntelliJ or Android Studio:
Make Object.java writable by choosing File -> Make File Writable. You may be prompted to do this automatically if you try to edit the file.
Remove the unboun...
Open Source Java Profilers [closed]
What can you guys recommend to use with Java?
12 Answers
12
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Retrieving a List from a java.util.stream.Stream in Java 8
I was playing around with Java 8 lambdas to easily filter collections. But I did not find a concise way to retrieve the result as a new list within the same statement. Here is my most concise approach so far:
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Truststore and Keystore Definitions
.... You can actually import a private key and a public certificate into the [java home]/jre/lib/security/cacerts default "truststore". The keytool utility does not make a distinction in the two terms, only in store types (i.e. - JKS vs. PKCS12). For that matter, Java does the same thing in the source ...
System.currentTimeMillis vs System.nanoTime
...you a nanosecond-precise time, relative to some arbitrary point.
From the Java Documentation:
public static long nanoTime()
Returns the current value of the most precise available system timer, in nanoseconds.
This method can only be used to
measure elapsed time and is not
related ...
Suppress echo of command invocation in makefile?
...tell gmake not to print the command being executed. Like this:
run:
@java myprogram
As Oli suggested, this is a feature of Make and not of Bash.
On the other hand, Bash will never echo commands being executed unless you tell it to do so explicitly (i.e. with -x option).
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Java: Clear the console
Can any body please tell me what code is used for clear screen in Java? For example in C++
14 Answers
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What is the purpose of class methods?
...m teaching myself Python and my most recent lesson was that Python is not Java , and so I've just spent a while turning all my Class methods into functions.
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