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Java 8 Distinct by property
In Java 8 how can I filter a collection using the Stream API by checking the distinctness of a property of each object?
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Android NDK C++ JNI (no implementation found for native…)
..."C" -- so it's either the above or some slight misspelling. What does the Java declaration look like?
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Java String new line
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In the older Java versions: System.getProperty("line.separator").
– ROMANIA_engineer
Feb 29 '16 at 10:08
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Java: splitting a comma-separated string but ignoring commas in quotes
... -1 to the split method param: line.split(regex, -1). See: docs.oracle.com/javase/6/docs/api/java/lang/…
– Bart Kiers
Apr 23 '14 at 14:55
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String is immutable. What exactly is the meaning? [duplicate]
... due to having no references.
Look at one more example below
String s1 = "java";
s1.concat(" rules");
System.out.println("s1 refers to "+s1); // Yes, s1 still refers to "java"
What's happening:
The first line is pretty straightforward: create a new String "java" and refer s1 to it.
Next, the ...
Java - Including variables within strings?
...r you, but it can be quite handy. The syntax is the same as for printf and java.util.Formatter. I've used it much especially if I want to show tabular numeric data.
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How can we match a^n b^n with Java regex?
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The answer is, needless to say, YES! You can most certainly write a Java regex pattern to match anbn. It uses a positive lookahead for assertion, and one nested reference for "counting".
Rather than immediately giving out the pattern, this answer will guide readers through the process of deri...
'Must Override a Superclass Method' Errors after importing a project into Eclipse
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Eclipse is defaulting to Java 1.5 and you have classes implementing interface methods (which in Java 1.6 can be annotated with @Override, but in Java 1.5 can only be applied to methods overriding a superclass method).
Go to your project/IDE preferen...
Why do this() and super() have to be the first statement in a constructor?
Java requires that if you call this() or super() in a constructor, it must be the first statement. Why?
19 Answers
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Declaring and initializing variables within Java switches
I have a crazy question about Java switches.
6 Answers
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