Milan Bakotra

 //randomaccessfile import java.io.*; import java.util.*; class randomaccessfile { public static void main(String[] args) { try { Scanner obj = new Scanner(System.in); int n, ch; long len; RandomAccessFile raf = new RandomAccessFile("File.txt","r"); len = raf.length(); System.out.print("Enter last character to Display : "); n = obj.nextInt(); if (n > len) { raf.seek(0); } else { raf.seek(len - 0); } raf.close(); } catch(Exception e) { System.out.println(e); } } } OUTPUT:

 //fileinfo import java.io.*; class fileinfo { public static void main(String[] args) { try { File file = new File("C:\\Users\\Divyesh\\Desktop\\java\\File.txt"); System.out.println("getName() = " + file.getName()); System.out.println("getParent() = " + file.getParent()); System.out.println("getPath() = " + file.getPath()); System.out.println("isFile() = " + file.isFile()); System.out.println("isDirectory() = " + file.isDirectory()); System.out.println("canRead() = " + file.canRead()); System.out.println("canWrite() = " + file.canWrite()); System.out.println("exists() = " + file.exists()); System.out.println("isHidden() = " + file.isHidden()); System.out.println("length() = " + file.length()); } catch(Exception e) { System.out.println(e); } } } OUTPUT: getName() = File.txt getParent() = C:\Users\Divy...

//System.Out.Println() /* System is class java.lang.System printStream is Class java.io.printStream println is method of printStream class */ class sys { static pristr out = new pristr(); } class pristr { void println(String str) { System.out.println(str); } } class SystemOut { public static void main(String[] args) { sys.out.println("Welcome"); } }  OUTPUT: Welcome

 //FileinputeStream import java.io.*; class FileInputeStream1 { public static void main(String[] args) { try { FileInputStream fis = new FileInputStream("bytes.txt"); int ch; while((ch = fis.read()) != -1) { System.out.print( ch + "\t" ); } fis.close(); } catch(Exception e) { System.out.println(e); } } } OUTPUT: 1       2       3       4       5       6       7       8       9       10

 //Byte Stream //FileOutputStream import java.io.*; class FileOutputStream1 { public static void main(String[] args) { try{ FileOutputStream fos = new FileOutputStream("bytes.txt"); for (int i = 1; i <= 10; i++) { fos.write(i); //String str = "Line : " + i; //byte arr[]  = str.getBytes(); //.write(arr); } fos.close(); } catch(Exception e) { System.out.println(e); } } } OUTPUT: text file : bytes.txt 1     2     3     4     5     6     7     8     9     10

 //Buffereader import java.io.*; class Buffereader { public static void main(String[] args) { try { FileReader fr = new FileReader("buffer.txt"); BufferedReader br = new BufferedReader(fr); int ch; while((ch = br.read()) != -1) { System.out.print((char) ch ); } br.close(); fr.close(); } catch(Exception e) { System.out.println(e); } } } OUTPUT: ☺☻♥♦♣

 //Bufferwriter import java.io.*; class Bufferwriter { public static void main(String[] args) { try{ FileWriter fw = new FileWriter("buffer.txt"); BufferedWriter bw = new BufferedWriter(fw); for (int i = 1; i <= 10; i++) { bw.write(i); } bw.close(); fw.close(); } catch(Exception e) { System.out.println(e); } } } OUTPUT: Test file : buffer.txt