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How to randomly pick an element from an array
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yes, but you've to tell that generator is an instance of java.util.Random
– stivlo
Nov 9 '11 at 13:17
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Java 8 method references: provide a Supplier capable of supplying a parameterized result
...ise you will get an error message like MyException cannot be converted to java.lang.RuntimeException
Update:- This was an issue with an older version of JDK. I don't see this issue with the latest versions.
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Java: parse int value from a char
... principle better. Also, 'x' means get the ascii value of the character in Java.
– Kevin Van Ryckegem
May 13 '17 at 13:16
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Warning - Build path specifies execution environment J2SE-1.4
... Eclipse from your project:
Right-click on your project
Click Properties
Java build path: Libraries; Remove the "JRE System Library[J2SE 1.4]"
Click Add Library -> JRE System Library
Select the new "Execution Environment" or Workspace default JRE
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What is the difference between '&' and ',' in Java generics?
While reading the Java official tutorial about generics, I found that you can restrict the type argument (in this case is T ) to extend a class and/or more interfaces with the 'and' operator ( & ) like this:
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Why we should not use protected static in java
...going through this question Is there a way to override class variables in Java?
The first comment with 36 upvotes was:
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Sort an array in Java
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I was lazy and added the loops
import java.util.Arrays;
public class Sort {
public static void main(String args[])
{
int [] array = new int[10];
for ( int i = 0 ; i < array.length ; i++ ) {
array[i] = ((int)(Math.random()*...
How to read a single char from the console in Java (as the user types it)?
...asy way to read a single char from the console as the user is typing it in Java? Is it possible? I've tried with these methods but they all wait for the user to press enter key:
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Failed to load JavaHL Library
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If you do not need to use JavaHL, Subclipse also provides a pure-Java SVN API library -- SVNKit (http://svnkit.com). Just install the SVNKit client adapter and library plugins from the Subclipse update site and then choose it in the preferences under...
Why doesn't java.util.Set have get(int index)?
I'm sure there's a good reason, but could someone please explain why the java.util.Set interface lacks get(int Index) , or any similar get() method?
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