In Java 8 a new class StringJoiner has been added that can be used for joining the Strings using the specified delimiter. There is also an option to pass prefix and suffix to be added to the final joined String. Read Also: Java String join() Method With Examples Java StringJoiner…
StringBuilder in Java is a mutable sequence of characters which means using this class you can create mutable strings (String that can be modified). The API provided by StringBuilder class is compatible with StringBuffer with one noticeable difference, with StringBuilder there is no guarantee of synchronization. When StringBuffer is being…
String in Java is immutable that brings us to the question why this decision to design String class as immutable. In this post we’ll see some of the reasons for this design decision. Java String objects are immutable Java String class is immutable which means once a String object is…
When a String object is created using string literal (value enclosed in double quotes) that String object is created in a part of memory known as constant string pool in Java. In this tutorial you’ll learn what is string pool in Java and how it optimizes memory when Strings are…
StringBuffer in Java is a thread-safe, mutable sequence of characters thus using StringBuffer class you can create modifiable String objects. In the post String in Java we have already seen that String objects are immutable i.e. Strings are constant; their values cannot be changed after they are created. Because of…
In this tutorial we’ll see how to use Collectors.teeing() method which is added in Java 12 to the Collectors class in the Java Stream API. Collectors.teeing() method The teeing() method let you create a composite of two Collectors and there is also a third argument; a merging function. Every element…
In this post we’ll see a Java program to merge PDFs using PDFBox library. To know more about Apache PDFBox library and PDF examples in Java using PDFBox check this post- Generating PDF in Java Using PDFBox Tutorial Merging PDFs using PDFBox To merge PDFs, PDFBox library provides PDFMergerUtility class…
In this tutorial we’ll learn about String in Java which is one of the most important and extensively used class in Java. Java String String in Java is a sequence of characters and it is represented by String class residing in java.lang Package. Whenever you create a String in Java…
Java Stream API provides two methods max() and min() where- max()– Returns the maximum element of this stream according to the provided Comparator. min()– Returns the minimum element of this stream according to the provided Comparator. Table of contents Java Stream max() method max() method Java examples Java Stream min()…
In the Java Stream API there are two methods findFirst() and findAny() where- findFirst() returns the first element of the Stream. findAny() returns any element of the Stream. Table of contents Java Stream findFirst() method Java Stream findFirst() examples Java Stream findAny() method Java Stream findAny() examples Java Stream findFirst()…
