JAVA programming

import java.io.*; public class Assignment { public static void main (String[] args) { char input1; String name, location, projNumStr, budgetStr; int projNumber; double budget; boolean operation = false; int operation2 = 0; String line; String filename; // create a ProjectManagement object. This is used throughout this class. ProjectManagement manage1 = new ProjectManagement(); try { // print out the menu printMenu(); // create a BufferedReader object to read input from a keyboard InputStreamReader isr = new InputStreamReader (System.in); BufferedReader stdin = new BufferedReader (isr); do { System.out.print("What action would you like to perform?\n"); line = stdin.readLine().trim(); //read a line input1 = line.charAt(0); input1 = Character.toUpperCase(input1); if (line.length() == 1) //check if a user entered only one character { switch (input1) { case 'A': //Add Project try { System.out.print("Please enter a project name to add:\n"); name = stdin.readLine().trim(); System.out.print("Please enter its projNumber to add:\n"); projNumStr = stdin.readLine().trim(); projNumber = Integer.parseInt(projNumStr); System.out.print("Please enter its location to add:\n"); location = stdin.readLine().trim(); System.out.print("Please enter its initial budget to add:\n"); budgetStr = stdin.readLine().trim(); budget = Double.parseDouble(budgetStr); operation = manage1.addProject(name, location, projNumber, budget); if (operation == true) System.out.print("project added\n"); else System.out.print("project exists\n"); } /************************************************************************************ *** Complete the follwing catch statement ***********************************************************************************/ catch( ) { } break; case 'D': //Search by projNumber try { System.out.print("Please enter projNumber to search:\n"); projNumStr = stdin.readLine().trim(); projNumber = Integer.parseInt(projNumStr); operation2=manage1.projNumberExists(projNumber); if (operation2 > -1) System.out.print("projNumber found\n"); else System.out.print("projNumber not found\n"); } /************************************************************************************ *** Complete the follwing catch statement ***********************************************************************************/ catch( ) { } break; case 'E': //Search by name and location System.out.print("Please enter a name to search:\n"); name = stdin.readLine().trim(); System.out.print("Please enter a location to search:\n"); location = stdin.readLine().trim(); operation2=manage1.nameLocationExists(name, location); if (operation2 > -1) System.out.print("project name and location found\n"); else System.out.print("project name and location not found\n"); break; case 'L': //List projects System.out.print(manage1.listProjects()); break; case 'O': // Sort by projNumber manage1.sortByProjNumber(); System.out.print("sorted by projNumber\n"); break; case 'P': // Sort by locations and project names manage1.sortByNameLocation(); System.out.print("sorted by project names and locations\n"); break; case 'Q': //Quit break; case 'R': //Remove by projNumber try { System.out.print("Please enter projNumber to remove:\n"); projNumStr = stdin.readLine().trim(); projNumber = Integer.parseInt(projNumStr); operation=manage1.removeProjNumber(projNumber); if (operation == true) System.out.print("projNumber removed\n"); else System.out.print("projNumber not found\n"); } /************************************************************************************ *** Complete the follwing catch statement ***********************************************************************************/ catch( ) { } break; case 'S': //Remove by location and name System.out.print("Please enter a name to remove:\n"); name = stdin.readLine().trim(); System.out.print("Please enter a location to remove:\n"); location = stdin.readLine().trim(); operation=manage1.removeNameLocation(name, location); if (operation == true) System.out.print("project name and location removed\n"); else System.out.print("project name and location not found\n"); break; case 'T': //Close ProjectManagement manage1.closeProjectManagement(); System.out.print("project management system closed\n"); break; case 'U': //Write Text to a File System.out.print("Please enter a file name to write:\n"); filename = stdin.readLine().trim(); /************************************************************************************ *** ADD your code to write a text (string) to the specified file. Catch exceptions. ************************************************************************************/ break; case 'V': //Read Text from a File System.out.print("Please enter a file name to read:\n"); filename = stdin.readLine().trim(); /************************************************************************************ *** ADD your code to read a text (string) from the specified file. Catch exceptions. ************************************************************************************/ break; case 'W': //Serialize ProjectManagement to a File System.out.print("Please enter a file name to write:\n"); filename = stdin.readLine().trim(); /************************************************************************************ *** ADD your code to write the project management bject to the specified file. Catch exceptions. ************************************************************************************/ break; case 'X': //Deserialize ProjectManagement from a File System.out.print("Please enter a file name to read:\n"); filename = stdin.readLine().trim(); /************************************************************************************ *** ADD your code to read a project management object from the specified file. Catch exceptions. ***********************************************************************************/ break; case '?': //Display Menu printMenu(); break; default: System.out.print("Unknown action\n"); break; } } else { System.out.print("Unknown action\n"); } } while (input1 != 'Q' || line.length() != 1); } catch (IOException exception) { System.out.print("IO Exception\n"); } } /** The method printMenu displays the menu to a user **/ public static void printMenu() { System.out.print("Choice\t\tAction\n" + "------\t\t------\n" + "A\t\tAdd Project\n" + "D\t\tSearch for ProjNumber\n" + "E\t\tSearch for Name and Location\n" + "L\t\tList Projects\n" + "O\t\tSort by ProjNumber\n" + "P\t\tSort by Name and Location\n" + "Q\t\tQuit\n" + "R\t\tRemove by ProjNumber\n" + "S\t\tRemove by Name and Location\n" + "T\t\tClose ProjectManagement\n" + "U\t\tWrite Text to File\n" + "V\t\tRead Text from File\n" + "W\t\tSerialize ProjectManagement to File\n" + "X\t\tDeserialize ProjectManagement from File\n" + "?\t\tDisplay Help\n\n"); } } // end of Assignment8 class