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  1. #1
    narty is offline Member
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    Default How to call an object from another class?

    Hello

    In my java homework i have to have a field, from a class called Cd point to an object from another class (Person). Now i have tried mighty hard but i just cannot make the final connection, i understand that the class Cd will have a field of type Person which would mean it holds information about an object from that class. i think?

    So now my lecturer described it to me with a telephone number example, i could go round the class and get everyones number or i could just get them to write it on a piece of paper and request the paper, which i gathered resembles an object i.e it has the information stored in its fields

    Now my issue is how do i call that object from a method in another class i think im going down the right tracks but i seem to be getting more and more confused please can somebody steer me in the right direction?

  2. #2
    j2me64's Avatar
    j2me64 is offline Senior Member
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    Default

    hello, i don't know if i got your reguirements by 100% but i have implemented an example:

    Java Code:
    class Person {
    	String phoneNr;
    	
    	public void setPhoneNr(String phoneNr) {
    		this.phoneNr = phoneNr;
    	}
    	
    	public String getPhoneNr() {
    		return this.phoneNr;
    	}
    }
    
    public class Cd {
    	
    	Person person;
    	
    	public void setPerson(Person p) {
    		this.person = p;
    	}
    	
    	public Person getPerson() {
    		return this.person;
    	}
    
    	/**
    	 * @param args
    	 */
    	public static void main(String[] args) {
    		Person p = new Person();
    		p.setPhoneNr("1234");
    		
    		Cd cd = new Cd();
    		cd.setPerson(p);
    		// get phonenumber from cd.person
    		System.out.println("phone number = " + cd.getPerson().getPhoneNr());
    	}
    }

    what do you think?

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