Question

Here is everything I have on my codes, the compiler does not allow me to input my name, it will print out "Please enter your name: " but totally ignores it and does not allow me to input my name and just proceeds to my result of ID and Sale. Please help. I've bolded the part where it I should be able to input my name

package salesperson;

public class Salesperson
{
String Names;
int ID;
double Sales;

// craeting set method which I can transfer data into it later
public void setNames(String Names)
{
this.Names=Names;
}

// craeting set method which I can transfer data into it later
public void setId(int id)
{

this.ID=id;
}

// craeting set method which I can transfer data into it later
public void setSales(double sales)
{
this.Sales=sales;
}

public String getNames()
{
return Names;
}

//Get method that returns sales
public double getSales()
{
return Sales;
}

//Get method that returns id
public int getId()
{
return ID;
}
}

//Application class

package salesperson;
import java.util.Scanner;

public class SalespersonDatabase

{

public static void main(String arg[])

{
//create array which can hold maximum of 20
Salesperson sp[] = new Salesperson[20];
//keep track of the numbers of sales person
int numSalespersons=0;
int choice;
int id;
String Name;
double sale = 0;

Scanner sc =new Scanner(System.in);
while(true)
{
System.out.println("1.Add a record.");
System.out.println("2.Change a record.");
System.out.println("3.Quit.");

  
System.out.print("Please enter in your choice:");
choice= sc.nextInt();
//if statement to create the record
if (choice ==1)
{
//check to see if salesperson is full
if (numSalespersons>=20)
{
System.out.println("Error: Database is full");
}
//if salessperson is not full
else
{
System.out.print("Please enter your ID: ");
id= sc.nextInt();
//check if the ID had been inputed
boolean a=false;
for(int k=0;k<numSalespersons;k++)
{
if(sp[k].ID==id)
{
a=true;
break;
}
}
//print error if the id exist
if(a==true)
{
System.out.println("Error: ID already exist");
}
else
{
System.out.print("Please enter your Name: ");
Name= sc.nextLine();
  
System.out.print("Please enter your Sales amount: $");
sale= sc.nextDouble();


sp[numSalespersons]=new Salesperson();
sp[numSalespersons].ID=id;
sp[numSalespersons].Sales=sale;
sp[numSalespersons].Names=Name;
numSalespersons++;
}
  
  
  
}
  
}
else if(choice==2)
{
//print error, if it is empty
if (numSalespersons<=0)
{
System.out.println("Error: Database is empty");
}
else
{
System.out.print("Plese enter your ID: ");
id= sc.nextInt();
boolean b=false;
int k;
//check whether the ID exist
for(k=0;k<numSalespersons;k++)
{
if(sp[k].ID==id)
{
b=true;
break;
}
}
//print error message if the ID does not exist
if(b==false)
{
System.out.println("Error: ID does not exist");
}
//If the ID exist then change the record
else
{
System.out.print("Enter new Sales amount: $");
sale= sc.nextDouble();
sp[k].Sales=sale;
}
}
}
else
{
System.out.println("Wrong choice");
}
System.out.println("ID -Sale");
for(int j=0;j<numSalespersons;j++)
{
System.out.println(sp[j].ID+" $"+sp[j].Sales);
}
}
}
}

Answer 1

Note:

I have made instance variables as private(Java recommendation).

Also I fixed the code wich accepts name...etc

Could you plz go through this code and let me know if u need any changes in this.Thank You
=================================

// Salesperson.java

public class Salesperson {
   private String Names;
   private int ID;
   private double Sales;

   // craeting set method which I can transfer data into it later
   public void setNames(String Names) {
       this.Names = Names;
   }

   // craeting set method which I can transfer data into it later
   public void setId(int id) {

       this.ID = id;
   }

   // craeting set method which I can transfer data into it later
   public void setSales(double sales) {
       this.Sales = sales;
   }

   public String getNames() {
       return Names;
   }

   // Get method that returns sales
   public double getSales() {
       return Sales;
   }

   // Get method that returns id
   public int getId() {
       return ID;
   }
}

=====================================

// SalespersonDatabase.java

import java.util.Scanner;

public class SalespersonDatabase

{

   public static void main(String arg[])

   {
       // create array which can hold maximum of 20
       Salesperson sp[] = new Salesperson[20];
       // keep track of the numbers of sales person
       int numSalespersons = 0;
       int choice;
       int id;
       String Name;
       double sale = 0;

       Scanner sc = new Scanner(System.in);
       while (true) {
           System.out.println("\n1.Add a record.");
           System.out.println("2.Change a record.");
           System.out.println("3.Quit.");

           System.out.print("Please enter in your choice:");
           choice = Integer.parseInt(sc.nextLine());
           // if statement to create the record
           if (choice == 1) {
               // check to see if salesperson is full
               if (numSalespersons >= 20) {
                   System.out.println("Error: Database is full");
               }
               // if salessperson is not full
               else {
                   System.out.print("Please enter your ID: ");
                   id = Integer.parseInt(sc.nextLine());
                   // check if the ID had been inputed
                   boolean a = false;
                   for (int k = 0; k < numSalespersons; k++) {
                       if (sp[k].getId() == id) {
                           a = true;
                           break;
                       }
                   }
                   // print error if the id exist
                   if (a == true) {
                       System.out.println("Error: ID already exist");
                   } else {
                      
                       System.out.print("Please enter your Name: ");
                       Name = sc.nextLine();

                       System.out.print("Please enter your Sales amount: $");
                       sale = Double.parseDouble(sc.nextLine());

                       sp[numSalespersons] = new Salesperson();
                       sp[numSalespersons].setId(id);
                       sp[numSalespersons].setSales(sale);
                       sp[numSalespersons].setNames(Name);
                       numSalespersons++;
                   }

               }

           } else if (choice == 2) {
               // print error, if it is empty
               if (numSalespersons <= 0) {
                   System.out.println("Error: Database is empty");
               } else {
                   System.out.print("Plese enter your ID: ");
                   id = Integer.parseInt(sc.nextLine());
                   boolean b = false;
                   int k;
                   // check whether the ID exist
                   for (k = 0; k < numSalespersons; k++) {
                       if (sp[k].getId() == id) {
                           b = true;
                           break;
                       }
                   }
                   // print error message if the ID does not exist
                   if (b == false) {
                       System.out.println("Error: ID does not exist");
                   }
                   // If the ID exist then change the record
                   else {
                       System.out.print("Enter new Sales amount: $");
                       sale = Double.parseDouble(sc.nextLine());
                       sp[k].setSales(sale);
                   }
               }
           }
           else if(choice==3)
           {
               System.out.println(":: PROGRAM EXIT ::");
               break;
           }
           else {
               System.out.println("Wrong choice");
           }
           System.out.println("ID -Sale");
           for (int j = 0; j < numSalespersons; j++) {
               System.out.println(sp[j].getId() + " $" + sp[j].getSales());
           }
       }
   }
}

====================================

output:

1.Add a record.
2.Change a record.
3.Quit.
Please enter in your choice:1
Please enter your ID: 1234
Please enter your Name: Williams
Please enter your Sales amount: $43000
ID -Sale
1234 $43000.0

1.Add a record.
2.Change a record.
3.Quit.
Please enter in your choice:1
Please enter your ID: 1234
Error: ID already exist
ID -Sale
1234 $43000.0

1.Add a record.
2.Change a record.
3.Quit.
Please enter in your choice:1
Please enter your ID: 2345
Please enter your Name: James
Please enter your Sales amount: $56000
ID -Sale
1234 $43000.0
2345 $56000.0

1.Add a record.
2.Change a record.
3.Quit.
Please enter in your choice:2
Plese enter your ID: 3456
Error: ID does not exist
ID -Sale
1234 $43000.0
2345 $56000.0

1.Add a record.
2.Change a record.
3.Quit.
Please enter in your choice:2
Plese enter your ID: 2345
Enter new Sales amount: $65000
ID -Sale
1234 $43000.0
2345 $65000.0

1.Add a record.
2.Change a record.
3.Quit.
Please enter in your choice:5
Wrong choice
ID -Sale
1234 $43000.0
2345 $65000.0

1.Add a record.
2.Change a record.
3.Quit.
Please enter in your choice:3
:: PROGRAM EXIT ::

=====================Could you plz rate me well.Thank You