Question

i have to create a list of ,let’s say 50 people, (in Java) and display the list, and i don’t really know how to do that. so this is what i have tried to do so far . please correct and complete some of my code .

public class Person {

    String name;
    String stuff;
}


public class CreatePerson {



public static void  ang()  {    

    ArrayList<Person> thing=new ArrayList<Person>(); 
    Scanner diskScanner = new Scanner(in);


    for(int i=0; i<50; i++){

        Person pers = new Person();

          out.print("name: ");
      pers.name=diskScanner.nextLine();

      out.print("stuff: ");
      pers.stuff=diskScanner.nextLine();

      thing.add(pers);

          break;

    }
    // Display people  
    for (int i=0; i<50; i++) {
        out.println(??);{
        }

} }}

Answer 1

Looks fine to start.

I’m going just to suggest a couple of things:

1.- Import the out attribute from System:

import static java.lang.System.out;

2.- In the for loop remove the break

...
for(int i=0; i<50; i++){
    Person pers = new Person();
    out.print("name: ");
    pers.name=diskScanner.nextLine();
    out.print("stuff: ");
    pers.stuff=diskScanner.nextLine();
    thing.add(pers);
    break; //<-- Remove this to continue with the remaining 49 persons
}

3.- Finally you could print the values like this:

// Display people  
for (int i=0; i<50; i++) {
    //out.println(??);{
    //}
    // could be:
    out.println("name: "+ thing.get(i).name +" stuff:"+thing.get(i).stuff );
}
...

edit

Alternatives for the print:

// introduce a variable p 
for (int i=0; i<50; i++) {
    Person p = thing.get(i);
    out.println("name: "+ p.name +" stuff:"+p.stuff );
}

Or

// using the size of the array and printf.. 
for (int i=0; i<thig.size(); i++) {
    Person p = thing.get(i);
    out.printf("name: %s stuff: %s %n", p.name ,p.stuff );
}

Or even better ( my preferred )

// using the for-each syntax
for( Person p : thing ) {
      out.printf("name: %s stuff: %s %n", p.name ,p.stuff );
}