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Convert Set to List without creating new List
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We can use following one liner in Java 8:
List<String> list = set.stream().collect(Collectors.toList());
Here is one small example:
public static void main(String[] args) {
Set<String> set = new TreeSet<>();
set.add("...
Pointers in Python?
...e great static v. dynamic debate. If they were two references to the same Java ArrayList, it would be the same, modulo syntax. If you use immutable objects (like tuples), you don't have to worry about the object being changed through another reference.
– Matthew Flaschen
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“Incorrect string value” when trying to insert UTF-8 into MySQL via JDBC?
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Your app is in Java I take it? Try invoking Java with the file-encoding parameter specifying UTF-8, e.g. java -Dfile.encoding=UTF-8 or add an appropriate switch in your Tomcat (etc.) config file.
– Eric J.
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Why use getters and setters/accessors?
...sors are not necessary for marshalling (serialization). In some languages (Java), public get accessors cannot have the return type changed without breaking dependent classes. Moreover, I believe they run counter to OO principles. See also: stackoverflow.com/a/1462424/59087
– Da...
How to upper case every first letter of word in a string? [duplicate]
...every word, not the whole string with .toUpperCase(). Is there an existing java helper which does the job?
16 Answers
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How to calculate the running time of my program? [duplicate]
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As an additional note: Since 1.5 you can use java.util.concurrent.TimeUnit for easy conversions from milliseconds and especially nano-seconds to other units.
– Boris
Mar 5 '11 at 13:43
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How to pass the values from one activity to previous activity
...tate to send it over network or you can use it for your purpose also.
Use java beans and store in it as one of his fields and use getters and setter for that
JavaBeans are Java classes that have properties. Think of
properties as private instance variables. Since they're private, the only way
they...
Assert an object is a specific type
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Here is the link to the Matcher being used: hamcrest.org/JavaHamcrest/javadoc/1.3/org/hamcrest/…
– John B
Sep 13 '12 at 11:12
3
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Is floating-point math consistent in C#? Can it be?
...erloaded operators for now because I have plans of translating the code to Java when I'm done.
– Peter O.
Jul 22 '11 at 2:20
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How to determine the screen width in terms of dp or dip at runtime in Android?
I need to code the layout of the android widgets using dip/dp (in java files). At runtime if I code,
int pixel=this.getWindowManager().getDefaultDisplay().getWidth() ;
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