file handling.
package File_Handling;
import java.io.*;
public class CreateFile {
// public static void main(String[] args) {
// File f= new File("C:\\Users\\vedva\\OneDrive\\Desktop\\ved.txt");
// try{
// if(f.createNewFile()){
// System.out.println("file successfully created");
// }else{
// System.out.println("file already exixts..");
// }
// }catch(IOException e){
// System.out.println("ioexception handled..");
// }
//}
public static void main(String[] args) throws IOException{
File f= new File("C:\\Users\\vedva\\OneDrive\\Desktop\\ved.txt");
if(f.createNewFile()){
System.out.println("file successfully created");
}else{
System.out.println("file already exixts..");
}
}
}
package File_Handling;
import java.io.*;
public class FileInfo {
public static void main(String[] args) {
File f = new File("C:\\Users\\vedva\\OneDrive\\Desktop\\ved.txt");
if(f.exists()){
System.out.println("File name : "+f.getName());
System.out.println("File location : "+f.getAbsolutePath());
System.out.println("File Writable : "+f.canWrite());
System.out.println("File Readable : "+f.canRead());
System.out.println("File size : "+f.length());
System.out.println("file delete : "+f.delete());
}else{
System.out.println("file not exists");
}
}
}
package File_Handling;
import java.io.*;
public class Filereader {
public static void main(String[] args) {
try{
FileReader f = new FileReader("C:\\Users\\vedva\\OneDrive\\Desktop\\ved.txt");
try{
int i;
while((i=f.read())!=-1){
System.out.print((char)i);
}
}finally{
f.close();
}
}
catch(IOException e){
System.out.println(e);
}
}
}
package File_Handling;
import java.io.*;
public class Filewriter {
public static void main(String[] args) {
try{
FileWriter f = new FileWriter("C:\\Users\\vedva\\OneDrive\\Desktop\\ved.txt");
try{
f.write("java is best programming language");
}
finally{
f.close();
System.out.println("successfully data wrote in file");
}
}
catch(IOException e){
System.out.println(e);
}
}
}
package File_Handling;
import java.io.*;
public class FileRename {
public static void main(String[] args) {
File f1 = new File("C:\\Users\\vedva\\OneDrive\\Desktop\\ved.txt");
File f2 = new File("C:\\Users\\vedva\\OneDrive\\Desktop\\dev.txt");
if(f1.exists()){
System.out.println(f1.renameTo(f2));
}else{
System.out.println("file not exists");
}
}
}
package File_Handling;
import java.io.*;
public class CopyFileContent {
public static void main(String[] args) throws IOException {
FileInputStream f = new FileInputStream("C:\\Users\\vedva\\OneDrive\\Desktop\\dev.txt");
FileOutputStream r = new FileOutputStream("C:\\Users\\vedva\\OneDrive\\Desktop\\dev_copy.txt");
int i;
while((i=f.read())!=-1){
r.write((char)i);
}
System.out.println("data copied successfully");
}
}
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