Iyswarya

 import java.io.File; import java.io.FileWriter; import java.io.IOException; import java.nio.file.Files; import java.nio.file.Paths; import java.util.Scanner; public class FileOperations {          public static void main(String[] args) {         Scanner scanner = new Scanner(System.in);         int choice;                  do {             System.out.println("\nFile Operations Menu:");             System.out.println("1. Create a File");             System.out.println("2. Update a File");             System.out.println("3. Delete a File");             System.out.println("4. Exit");             System.out.print("Enter your choice: ");             choice = scanner.nextI...

 Name: S. Iyswarya      Class: ll M.Sc Computer Science    Reg No: P 23 CS 376  College Name: GACA (KUM)  DOB: 04/01/2003 Qualification: Bsc, Computer Science   Father's Name: V. Singaravelan  Occupation: Coolie Mother's Name: S. Karpagavalli  Occupation: ---  Annual Income: 60,000  Blood Group: O+ve  Mobile Number: 9499020071 E-mail Id : iyswaryas03@gmail.com

 import java.lang.*; import java.io.*; class Questions{ public String [][]qpa; public String[][]qca;  Questions()throws IOException { qpa=new String[10][5]; /*questionsandobjectives*/ DataInputStream in=new DataInputStream(System.in); qpa[0][0]="keyboard?"; qpa[0][1]="1.input"; qpa[0][2]="2.java JavaProgram"; qpa[0][3]="3.javac JavaProgram.java";qpa[0][4]="4.No one"; qpa[1][0]="What is the use ofthe println method?"; qpa[1][1]="1.Itisusedtoprinttextonthescreen."; qpa[1][2]="2.Itisusedtoprinttextonthescreenwiththelinebreak."; qpa[1][3]="3.Itisusedtoreadtextfromkeyboard."; qpa[1][4]="4.Itisusedtoread textfromafile."; qpa[2][0]="Howtoreadacharacterfromthekeyboard?"; qpa[2][1]="1.char c=System.read()"; qpa[2][2]="2.char c=System.in.read()"; qpa[2][3]="3.char c=(char)System.read()"; qpa[2][4]="4.char c=(char)System.in.read()"; qpa[3][0]="...