Update README.md

Author: Eugen

core-java-sun/README.md

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 ## Core Java Cookbooks and Examples
 
 ### Relevant Articles: 
-- [Immutable ArrayList in Java](http://www.baeldung.com/java-immutable-list)
-- [Java - Reading a Large File Efficiently](http://www.baeldung.com/java-read-lines-large-file)
-- [Java InputStream to String](http://www.baeldung.com/convert-input-stream-to-string)
-- [Converting between an Array and a List in Java](http://www.baeldung.com/convert-array-to-list-and-list-to-array)
-- [Converting between an Array and a Set in Java](http://www.baeldung.com/convert-array-to-set-and-set-to-array)
-- [Converting between a List and a Set in Java](http://www.baeldung.com/convert-list-to-set-and-set-to-list)
-- [Convert a Map to an Array, List or Set in Java](http://www.baeldung.com/convert-map-values-to-array-list-set)
-- [Java – Write to File](http://www.baeldung.com/java-write-to-file)
-- [Java - Convert File to InputStream](http://www.baeldung.com/convert-file-to-input-stream)
-- [Java – Random Long, Float, Integer and Double](http://www.baeldung.com/java-generate-random-long-float-integer-double)
-- [Java – Generate Random String](http://www.baeldung.com/java-random-string)
-- [Java Scanner](http://www.baeldung.com/java-scanner)
-- [Java Timer](http://www.baeldung.com/java-timer-and-timertask)
-- [Java – Byte Array to Writer](http://www.baeldung.com/java-convert-byte-array-to-writer)
-- [How to Run a Shell Command in Java](http://www.baeldung.com/run-shell-command-in-java)
-- [MD5 Hashing in Java](http://www.baeldung.com/java-md5)
-- [Guide to the Java ArrayList](http://www.baeldung.com/java-arraylist)
-- [Guide to Java Reflection](http://www.baeldung.com/java-reflection)
-- [A Guide to Java Sockets](http://www.baeldung.com/a-guide-to-java-sockets)
-- [Convert char to String in Java](http://www.baeldung.com/java-convert-char-to-string)
-- [Random List Element](http://www.baeldung.com/java-random-list-element)
-- [Convert String to int or Integer in Java](http://www.baeldung.com/java-convert-string-to-int-or-integer)
-- [Java – Directory Size](http://www.baeldung.com/java-folder-size)
-- [Java – Try with Resources](http://www.baeldung.com/java-try-with-resources)
-- [Guide to the Fork/Join Framework in Java](http://www.baeldung.com/java-fork-join)
-- [How to Print Screen in Java](http://www.baeldung.com/print-screen-in-java)
-- [How to Convert String to different data types in Java](http://www.baeldung.com/java-string-conversions)
-- [Introduction to Java Generics](http://www.baeldung.com/java-generics)
-- [Generate equals() and hashCode() with Eclipse](http://www.baeldung.com/java-eclipse-equals-and-hashcode)
-- [A Guide To Java Regular Expressions API](http://www.baeldung.com/regular-expressions-java)
-- [Sorting in Java](http://www.baeldung.com/java-sorting)
-- [Getting Started with Java Properties](http://www.baeldung.com/java-properties)
-- [Grep in Java](http://www.baeldung.com/grep-in-java)
-- [Java - Combine Multiple Collections](http://www.baeldung.com/java-combine-multiple-collections)
-- [Simulated Annealing for Travelling Salesman Problem](http://www.baeldung.com/java-simulated-annealing-for-traveling-salesman)
-- [Slope One Algorithm: Collaborative Filtering Recommendation Systems](http://www.baeldung.com/java-collaborative-filtering-recommendations)
-- [Differences Between the Java WatchService API and the Apache Commons IO Monitor Library](http://www.baeldung.com/java-watchservice-vs-apache-commons-io-monitor-library)
-- [Pattern Search with Grep in Java](http://www.baeldung.com/grep-in-java)
-- [URL Encoding and Decoding in Java](http://www.baeldung.com/java-url-encoding-decoding)
-- [Calculate the Size of a File in Java](http://www.baeldung.com/java-file-size)
-- [The Basics of Java Generics](http://www.baeldung.com/java-generics)
-- [The Traveling Salesman Problem in Java](http://www.baeldung.com/java-simulated-annealing-for-traveling-salesman)
-- [How to Create an Executable JAR with Maven](http://www.baeldung.com/executable-jar-with-maven)
-- [How to Design a Genetic Algorithm in Java](http://www.baeldung.com/java-genetic-algorithm)
-- [Guide to WeakHashMap in Java](http://www.baeldung.com/java-weakhashmap)
-- [Spring Security – Cache Control Headers](http://www.baeldung.com/spring-security-cache-control-headers)
-- [Basic Introduction to JMX](http://www.baeldung.com/java-management-extensions)
-- [AWS Lambda With Java](http://www.baeldung.com/java-aws-lambda)
-- [Introduction to Nashorn](http://www.baeldung.com/java-nashorn)
-- [Guide to the Guava BiMap](http://www.baeldung.com/guava-bimap)
-- [Iterable to Stream in Java](http://www.baeldung.com/java-iterable-to-stream)
-- [Chained Exceptions in Java](http://www.baeldung.com/java-chained-exceptions)
-- [The Java HashMap Under the Hood](http://www.baeldung.com/java-hashmap)
-- [A Guide to LinkedHashMap in Java](http://www.baeldung.com/java-linked-hashmap)
-- [A Guide to TreeMap in Java](http://www.baeldung.com/java-treemap)
-- [A Quick JUnit vs TestNG Comparison](http://www.baeldung.com/junit-vs-testng)
-- [Java Primitive Conversions](http://www.baeldung.com/java-primitive-conversions)
-- [Java Money and the Currency API](http://www.baeldung.com/java-money-and-currency)
-- [Removing all nulls from a List in Java](http://www.baeldung.com/java-remove-nulls-from-list)
-- [Removing all duplicates from a List in Java](http://www.baeldung.com/java-remove-duplicates-from-list)
-- [Using Math.pow in Java](http://www.baeldung.com/java-math-pow)
-- [Converting Strings to Enums in Java](http://www.baeldung.com/java-string-to-enum)
-- [Flattening Nested Collections in Java](http://www.baeldung.com/java-flatten-nested-collections)
-- [Quick Guide to the Java StringTokenizer](http://www.baeldung.com/java-stringtokenizer)
-- [JVM Log Forging](http://www.baeldung.com/jvm-log-forging)
-- [Guide to sun.misc.Unsafe](http://www.baeldung.com/java-unsafe)
-- [HashSet and TreeSet Comparison](http://www.baeldung.com/java-hashset-vs-treeset)
-- [How to Perform a Simple HTTP Request in Java](http://www.baeldung.com/java-http-request)
-- [Call Methods at Runtime Using Java Reflection](http://www.baeldung.com/java-method-reflection)
-- [Guide to UUID in JAVA](http://www.baeldung.com/guide-to-uuid-in-java)
-- [Comparing getPath(), getAbsolutePath(), and getCanonicalPath() in Java](http://www.baeldung.com/java-path)
-- [How to Add a Single Element to a Stream](http://www.baeldung.com/java-stream-append-prepend)
-- [Iterating Over Enum Values in Java](http://www.baeldung.com/java-enum-iteration)
-- [Kotlin Java Interoperability](http://www.baeldung.com/kotlin-java-interoperability)
-- [Using Java MappedByteBuffer](http://www.baeldung.com/java-mapped-byte-buffer)
-- [How to Round a Number to N Decimal Places in Java](http://www.baeldung.com/java-round-decimal-number)
-- [Changing Annotation Parameters At Runtime](http://www.baeldung.com/java-reflection-change-annotation-params)
-- [How to Find all Getters Returning Null](http://www.baeldung.com/java-getters-returning-null)
-- [Converting String to Stream of chars](http://www.baeldung.com/java-string-to-stream)
-- [Changing the Order in a Sum Operation Can Produce Different Results?](http://www.baeldung.com/java-floating-point-sum-order)
-- [How to Get a Name of a Method Being Executed?](http://www.baeldung.com/java-name-of-executing-method)
-- [Iterate over a Map in Java](http://www.baeldung.com/java-iterate-map)
-- [Dynamic Proxies in Java](http://www.baeldung.com/java-dynamic-proxies)
-- [How to Copy an Array in Java](http://www.baeldung.com/java-array-copy)
-- [Introduction to JDBC](http://www.baeldung.com/java-jdbc)
-- [Period and Duration in Java](http://www.baeldung.com/java-period-duration)
-- [Converting a Stack Trace to a String in Java](http://www.baeldung.com/java-stacktrace-to-string)
-- [Count Occurrences of a Char in a String](http://www.baeldung.com/java-count-chars)
-- [Java Double Brace Initialization](http://www.baeldung.com/java-double-brace-initialization)
-- [The StackOverflowError in Java](http://www.baeldung.com/java-stack-overflow-error)
-- [Split a String in Java](http://www.baeldung.com/java-split-string)
-- [Introduction to Java Serialization](http://www.baeldung.com/java-serialization)
-- [How to Remove the Last Character of a String?](http://www.baeldung.com/java-remove-last-character-of-string)
-- [ClassNotFoundException vs NoClassDefFoundError](http://www.baeldung.com/java-classnotfoundexception-and-noclassdeffounderror)
-- [Guide to UUID in Java](http://www.baeldung.com/java-uuid)
-- [Guide to Escaping Characters in Java RegExps](http://www.baeldung.com/java-regexp-escape-char)
-- [Guide to hashCode() in Java](http://www.baeldung.com/java-hashcode)
-- [Collect a Java Stream to an Immutable Collection](http://www.baeldung.com/java-stream-immutable-collection)
-- [Difference between URL and URI](http://www.baeldung.com/java-url-vs-uri)
-- [Broadcasting and Multicasting in Java](http://www.baeldung.com/java-broadcast-multicast)
-- [Converting a List to String in Java](http://www.baeldung.com/java-list-to-string)
-- [CharSequence vs. String in Java](http://www.baeldung.com/java-char-sequence-string)
-- [Period and Duration in Java](http://www.baeldung.com/java-period-duration)
-- [Guide to the Diamond Operator in Java](http://www.baeldung.com/java-diamond-operator)
-- [Singletons in Java](http://www.baeldung.com/java-singleton)
-- [“Sneaky Throws” in Java](http://www.baeldung.com/java-sneaky-throws)
-- [OutOfMemoryError: GC Overhead Limit Exceeded](http://www.baeldung.com/java-gc-overhead-limit-exceeded)
-- [How to Iterate Over a Stream With Indices](http://www.baeldung.com/java-stream-indices)
-- [StringBuilder and StringBuffer in Java](http://www.baeldung.com/java-string-builder-string-buffer)
-- [Number of Digits in an Integer in Java](http://www.baeldung.com/java-number-of-digits-in-int)
-- [Proxy, Decorator, Adapter and Bridge Patterns](http://www.baeldung.com/java-structural-design-patterns)
 - [Creating a Java Compiler Plugin](http://www.baeldung.com/java-build-compiler-plugin)
-- [A Guide to the Static Keyword in Java](http://www.baeldung.com/java-static)
-- [Initializing Arrays in Java](http://www.baeldung.com/java-initialize-array)
-- [Guide to Java String Pool](http://www.baeldung.com/java-string-pool)
-- [Copy a File with Java](http://www.baeldung.com/java-copy-file)
-- [Introduction to Creational Design Patterns](http://www.baeldung.com/creational-design-patterns)
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