The DeflaterOutputStream class of Java is used to compress the given data and stream it out to the destination.The write() method of this class accepts the data (in integer and byte format), compresses it and, writes it to the destination of the current DeflaterOutputStream object. To compress a file using ... Read More

You can get a part of a Java array in between two specified indexes in various ways.By Copying contents:One way to do so is to create an empty array and copy the contents of the original array from the start index to the endIndex.Example Live Demoimport java.util.Arrays; public class SlicingAnArray { ... Read More

The class named File of the java.io package represents a file or directory (path names) in the system. To get the list of all the existing files in a directory this class provides the list() and ListFiles() methods.The main difference between them is thatThe list() method returns the names of ... Read More

In certain scenarios such as unit testing, or for some application logics you might need to create temporary files.Creating a temporary fileThe File class in Java provides a method with name createTempFile(). This method accepts two String variables representing the prefix (starting name) and suffix(extension) of the temp file and ... Read More

The Console class is used to write/read data from the console (keyboard/screen) devices. It provides a readLine() method which reads a line from the key-board. You can get an object of the Console class using the console() method.Note − If you try to execute this program in a non-interactive environment ... Read More

Character Streams − These handle data in 16 bit Unicode. Using these you can read and write text data only.The Reader and Writer classes (abstract) are the super classes of all the character stream classes: classes that are used to read/write character streams. Following are the character array stream classes ... Read More

These handle data in bytes (8 bits) i.e., the byte stream classes read/write data of 8 bits. Using these you can store characters, videos, audios, images etc.The InputStream and OutputStream classes (abstract) are the super classes of all the input/output stream classes: classes that are used to read/write a stream ... Read More

While you are trying to write data to a Stream using the BufferedWriter object, after invoking the write() method the data will be buffered initially, nothing will be printed.The flush() method is used to push the contents of the buffer to the underlying Stream.ExampleIn the following Java program, we are ... Read More

The append() method of the StringBuilder class accepts a String value and adds it to the current object.To convert a String value to StringBuilder object −Get the string value.Append the obtained string to the StringBuilder using the append() method.ExampleIn the following Java program, we are converting an array of Strings ... Read More

The stripStart() method of the org.apache.commons.lang.StringUtils class accepts two strings and removes the set of characters represented by the second string from the string of the first string.To remove leading zeros from a string using apache communal library −Add the following dependency to your pom.xml file    org.apache.commons    commons-lang3 ... Read More