How to use an output parameter in Java?

Question

Could someone please give me some sample code that uses an output parameter in function? I\'ve tried to Google it but just found it just in functions. I\'d like to use this

Answer 1

Thank you. I use passing in an object as a parameter. My Android code is below

    String oPerson= null;
    if (CheckAddress("5556", oPerson))
    {
        Toast.makeText(this, 
                "It's Match! " + oPerson,                   
                Toast.LENGTH_LONG).show();
    }

    private boolean CheckAddress(String iAddress, String oPerson)
{
    Cursor cAddress = mDbHelper.getAllContacts();
    String address = "";        
    if (cAddress.getCount() > 0) {
        cAddress.moveToFirst();
        while (cAddress.isAfterLast() == false) {
            address = cAddress.getString(2).toString();
            oPerson = cAddress.getString(1).toString(); 
            if(iAddress.indexOf(address) != -1)
            {
                Toast.makeText(this, 
                        "Person : " + oPerson,                  
                        Toast.LENGTH_LONG).show();
                System.out.println(oPerson);
                cAddress.close();
                return true;                    
            }
            else cAddress.moveToNext();
        }
    }
    cAddress.close();
    return false;
}

The result is

Person : John

It's Match! null

Actually, "It's Match! John"

Please check my mistake.