Click here to watch in Youtube :
https://www.youtube.com/watch?v=2xzXz6965RA&list=UUhwKlOVR041tngjerWxVccw
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Java Tutorial : Java IO (Java RandomAccessFile - V1) |
Java Tutorial : Java IO (Java RandomAccessFile - V1) |
Java Tutorial : Java IO (Java RandomAccessFile - V1) |
Java Tutorial : Java IO (Java RandomAccessFile - V1) |
Java Tutorial : Java IO (Java RandomAccessFile - V1) |
Java Tutorial : Java IO (Java RandomAccessFile - V1) |
John visits to india and went to Bangalore,TamilNadu and went to Delhi to visit Prime minister.RandomAccessFileReadDemo.java
import java.io.IOException; import java.io.RandomAccessFile; public class RandomAccessFileReadDemo { public static void main(String[] args) throws IOException { RandomAccessFile randomAccessFile = null; try { /* * Second input parameter to the constructor: * "r". This is the mode you want to open file * in. "r" means read mode. */ randomAccessFile = new RandomAccessFile("myfile.txt", "r"); /* * Sets the file-pointer offset, measured from * the beginning of this file, at which the next * read or write occurs. */ randomAccessFile.seek(57); int byteValue; while ((byteValue = randomAccessFile.read()) != -1) { System.out.print((char) byteValue); } } finally { if (randomAccessFile != null) { randomAccessFile.close(); } } } }Output
went to Delhi to visit Prime minister.RandomAccessFileWriteDemo.java
import java.io.IOException; import java.io.RandomAccessFile; public class RandomAccessFileWriteDemo { public static void main(String[] args) throws IOException { RandomAccessFile randomAccessFile = null; try { /* * Second input parameter to the constructor: * "rw". This is the mode you want to open file * in. "rw" means read/write mode. */ randomAccessFile = new RandomAccessFile("myfile.txt", "rw"); /* * Sets the file-pointer offset, measured from * the beginning of this file, at which the next * read or write occurs. */ randomAccessFile.seek(43); randomAccessFile.write("Hydrabad ".getBytes()); System.out.println("Successfully updated the file content.."); } finally { if (randomAccessFile != null) { randomAccessFile.close(); } } } }Output
Successfully updated the file content..
Refer: https://docs.oracle.com/javase/8/docs/api/index.html?java/io/RandomAccessFile.html
https://sites.google.com/site/ramj2eev1/home/javabasics/JavaIODemo_RandomAccessFile_App.zip?attredirects=0&d=1
Github Link:
https://github.com/ramram43210/Java/tree/master/BasicJava/JavaIODemo_RandomAccessFile_App
Bitbucket Link:
https://bitbucket.org/ramram43210/java/src/a3d05269db9922e504bb1f9de8d07031990c9910/BasicJava/JavaIODemo_RandomAccessFile_App/?at=master
See also:
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