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Easy way to convert Iterable to Collection
...ly we would see some of these common patterns integrated directly into the Java runtime libraries.
– Jonathan Neufeld
Nov 3 '15 at 20:01
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Is there a method for String conversion to Title Case?
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There are no capitalize() or titleCase() methods in Java's String class. You have two choices:
using commons lang string utils.
StringUtils.capitalize(null) = null
StringUtils.capitalize("") = ""
StringUtils.capitalize("cat") = "Cat"
StringUtils.capitalize("cAt...
Immutable class?
How can one make a Java class immutable, what is the need of immutability and is there any advantage to using this?
13 Answ...
Overriding the java equals() method - not working?
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In Java, the equals() method that is inherited from Object is:
public boolean equals(Object other);
In other words, the parameter must be of type Object. This is called overriding; your method public boolean equals(Book other...
java.lang.IllegalArgumentException: View not attached to window manager
...licitly via AsyncTask.cancel()) closing it via .cancel().
Got the same "java.lang.IllegalArgumentException: View not attached to window manager" error when I was killing the dialog in the onCancelled() method of the AsyncTask (I'd seen this done in the excellent Shelves app).
The workaround wa...
Reintegrate can only be used if revisions X through Y were previously merged from to reintegra
... the
reintegrate source, but this is not the case:
trunk/proj/src/main/java/com/foo/furniture.java
Missing ranges: /trunk/proj/src/main/java/com/foo/furniture.java:18765-18920
To find the files with mergeinfo information you can do:
cd ~/svn/branches/2.7
svn propget -R svn:mergeinfo .
Then ...
Random shuffling of an array
...e function yourself, using for example the Fisher–Yates shuffle:
import java.util.*;
import java.util.concurrent.ThreadLocalRandom;
class Test
{
public static void main(String args[])
{
int[] solutionArray = { 1, 2, 3, 4, 5, 6, 16, 15, 14, 13, 12, 11 };
shuffleArray(solutionArray);
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Why can't we have static method in a (non-static) inner class?
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In C++ you can have, so this is a bug in the Java language.
– Industrial-antidepressant
Oct 23 '13 at 16:57
39
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How to unescape HTML character entities in Java?
... more entries to the map if you need HTML 4.
package com.example;
import java.io.StringWriter;
import java.util.HashMap;
public class StringUtils {
public static final String unescapeHtml3(final String input) {
StringWriter writer = null;
int len = input.length();
int...
How can we print line numbers to the log in java
... seen are slow. You are better off using a logging framework like that in java.util.logging package or log4j. Using these packages you can configure your logging information to include context down to the class name. Then each log message would be unique enough to know where it came from. As a r...