Person

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 */
package vo7;

import java.util.Scanner;

/**
 *
 * @author HP
 */
public class Person {

    private String name;
    private float salary;
    private String address;

    Scanner sc = new Scanner(System.in);

    /**
     * constructor with no parameters
     *
     */
    public Person() {
    }

    /**
     * constructor with parameters
     *
     * @param name
     * @param salary
     * @param address
     */
    public Person(String name, float salary, String address) {
        this.name = name;
        this.salary = salary;
        this.address = address;
    }

    /**
     * getName
     *
     * @return
     */
    public String getName() {
        return name;
    }

    /**
     * Set name
     *
     * @param name
     */
    public void setName(String name) {
        this.name = name;
    }

    /**
     * getSalary
     *
     * @return
     */
    public float getSalary() {
        return salary;
    }

    /**
     * setSalary
     *
     * @param salary
     */
    public void setSalary(float salary) {
        this.salary = salary;
    }

    /**
     * getAddress
     *
     * @return
     */
    public String getAddress() {
        return address;
    }

    /**
     * setAddress
     *
     * @param address
     */
    public void setAddress(String address) {
        this.address = address;
    }

    /**
     * Enter the name, will error and re-enter it when nothing is entered and
     * enter the number for the name
     *
     * @param scanner
     * @param message
     * @return
     */
    public String getInputName(Scanner scanner, String message) {
        String name;
        boolean valid;

        do {    //The loop will repeat if wrong data is entered
            valid = true;
            System.out.print(message);
            name = scanner.nextLine().trim();
            if (name.matches("[a-zA-Z]+")) {
                valid = true;
            } else if (name.equals("")) {  // check if the user has entered anything
                System.out.println("Error: Your input can not be empty!");
                valid = false;
            } else if (name.matches("[0-9]+")) { //check if the name has a number or not
                System.out.println("Error: Your input can not be number!");
                valid = false;
            } else { // check if the name has character
                System.out.println("Error: Your input can not be character!");
                valid = false;
            }
        } while (valid == false);

        return name;
    }

    /**
     * Enter a string of characters, an error will be displayed when nothing is
     * entered
     *
     * @param scanner
     * @param message
     * @return
     */
    public String getInputString(Scanner scanner, String message) {
        String string;
        do {    //The loop will repeat if wrong data is entered
            System.out.print(message);
            string = scanner.nextLine().trim();
            if (string.equals("")) {  // check if the user has entered anything
                System.out.println("Error: Your input can not be empty!");
            }
        } while (string.equals(""));
        return string;
    }

    /**
     * Enter salary, it will display an error and re-enter it when entering a
     * number less than zero, enter text and enter nothing
     *
     * @param scanner
     * @param message
     * @return
     */
    public float getInputSalary(Scanner scanner, String message) {
        Float input = null;
        while (input == null) {
            try {
                input = Float.parseFloat(getInputString(scanner, message));
                if (input < 0) {    //salary must be greater than 0
                    System.out.println("Error: The salary must be greater than 0 !");
                    input = null;
                }
            } catch (NumberFormatException e) {     //salary can't be word
                System.out.println("Error: The salary must be a number !");
            }
        }
        return input;
    }

    /**
     * Enter data for the object including name, address and salary
     *
     */
    public void inputPersonInfo() {
        System.out.println("Input Information of Person");
        this.name = getInputName(sc, "Please input name: ");
        this.address = getInputString(sc, "Please input address: ");
        this.salary = getInputSalary(sc, "Please input salary: ");
    }

    /**
     * Display information on the screen including name, address and salary
     *
     */
    public void outputPersonInfo() {
        System.out.println("Information of Person you have entered:");
        System.out.println("Name: " + this.getName());
        System.out.println("Address: " + this.getAddress());
        System.out.println("Salary: " + this.getSalary());
        System.out.println("");
    }

}