Question

Write a java program

Convert an object into string
public String toString()
{ return area+”-“ + ln + “ –“ + nb;}
System.out.println(myphone);
-------------------myphone.toString()

Answer 1

Please find the required program along with its output. Please see the comments against each line to understand the step.

Note: The members of class is identified from the variables used in toString method in the question.

class Test {
    public static void main(String[] args) {

        Phone myPhone = new Phone(91,890,4699567);  //create an object myPhone of class Phone

        System.out.println(myPhone.toString());    //print the myPhone object
    }
}
class Phone {
    int area;
    int ln;
    int nb;
    public Phone(int area, int ln, int nb) {
        this.area = area;
        this.ln = ln;
        this.nb = nb;
    }

    @Override
    public String toString() {  //toString method : which will convert the object into string notation
        return area+"-" + ln + "–" + nb;
    }

    public int getArea() {
        return area;
    }

    public void setArea(int area) {
        this.area = area;
    }

    public int getLn() {
        return ln;
    }

    public void setLn(int ln) {
        this.ln = ln;
    }

    public int getNb() {
        return nb;
    }

    public void setNb(int nb) {
        this.nb = nb;
    }
}

--------------------------------

OUTPUT:

91-890–4699567