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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)