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An explicit lock(Lock) and implicit lock(synchronize method & statement) is a tool for controlling access to a shared resource by multiple threads.Every object in Java has implicit monitor lock and synchronize(method & statements/blocks) tak…

Java support Input and Output(I/O) operations with characters/text and binary stream. Java I/O model is highly flexible so that it can accommodate data sources like File, Arrays, piped streams, etc. Since, ASCII (8 bit) character encoding was not suf…

File class (package java.io.*) is an abstract representation of file and directory pathnames. Each operating systems use system-dependent pathname strings to name files and directories(Windows use like this "C:\\DIR_NAME\\File_NAME"  and Lin…

Topics covered 1. CharArrayReader 2. CharArrayWriter In Java  FileInputStream, FileReader, FileOutputStream and FileWriter are responsible for supporting byte and character read/write operation in File. ByteArrayInputStream and ByteArrayOutputS…

Topics covered 1. ByteArrayInputStream 2. ByteArrayOutputStream In previous post we discusses about  Java I/O classes classification & class hierarchy  and its interdependency. Java support Input and Output(I/O) operations with characters/te…

In Java file.list() and file.listFiles() are used to list all File objects (file and directory) at given directory (All Files just one level down to that abstract file path). Suppose we want to list all nested files present at all level with respect …

Sometimes we need to create temporary file in system and need to delete the same automatically. In Java we have a static method ( createTempFile(prefix, suffix, dir)  ) in File class which creates temporary file and provides facility of automatic clea…