PPT-Files and I/O Streams in Java

Written by Amir Kirsh Edited by Liron Blecher Agenda System Parameters File Class IO Streams Reading from the standard input Scanner Class Binary files Text files and character encoding 3. in . ColdFusion. Rick Root. It just doesn’t seem right to have a slide with bullet points that prompt me to talk about myself.. Who Am I?. Extend ColdFusion with “core” java. Extend ColdFusion with external . Putting Applets into Web Pages. Two things are involved in the process of putting applets onto web pages. The .class files of the applet. The html file of the page. Remember: any Java source file that compiles correctly will produce a .class file.. (part 2). 1. Based on slides from Deitel & Associates, Inc.. Revised by T. A. Yang. Outline. Text files. Binary files . Related Java classes: . java.io.FileReader . (for reading streams of characters). Anthony . Cozzie. , . Murph. . Finnicum. , Sam King. University of Illinois at Urbana-Champaign. Programming is hard!. Extreme Detail. Extreme . Precision. Lots of Automated Tools. Static Analysis. Coverity. Alan Hunt – March 1. st. , 2017. Agenda. Files as data storage and transfer mechanisms. Structured file types. Fixed Width. Delimited. XML. Proprietary Formats. CSV – Why is it popular?. Simple example (CSVReader.java). Overview of I/O Streams . To bring in information, a program opens a . stream. on an information source (a file, memory, a socket) and reads the information sequentially, as shown in the following figure. . Tetsuya . Kanda. 1. , Daniel . M. . German. 2,1. , . Takashi . Ishio. 1. , . Katsuro. . Inoue. 1. 1 . Osaka . University, . Japan. 2. . University . of Victoria, Canada. Reusing . a library. Reuse existing libraries by copying them into . CS2110 . Recitation . 8. 1. Program . Input/Output. 2. Program. Arguments. Files. Console. Return values. Java's I/O classes are in package. . java.io. . package . java.nio. To import the classes:. fscanf. Files – . FILE. type and . fopen. Often times, it's important to read stored content off of the file system.. stdio.h. includes a suite of functions for the access and modification of files.. Networking with Java CSc 335 Object-Oriented Programming and Design Spring 2009 Networking with Java N- 2 Acknowledgements These slides were written by Craig Barber. Some slides from Martin Stepp were used. Streams Declarative— More concise and readable Composable— Greater flexibility Parallelizable— Better performance What is a stream? A stream is “a sequence of elements from a source that supports data processing operations.” Ehsan . Salamati. . Taba. , . Foutse. . Khomh. , Ying . Zou. , . Meiyappan. . Nagappan. , Ahmed E. Hassan. 1. 2. Predict Bugs. Model. Code. Antipatterns. 3. Past Defects, History of Churn (Zimmermann, Hassan et al.). Ways to Read Files. Streams. Scanner. Class. Files. Class. RandomAccessFile. Class. 2. Java I/O Streams (overview). Writing data to / Reading data from files (or other data sources). Two Choices: Binary-Formatted or Text-Formatted Data.