Option 1 : Loop through the ArrayList to find the employee
for(ClassName emp : enployee)
{
if("Tim".equals(emp.getName()))
{
// do something
break;
}
}
Option 2 : Store the employees in some fast searchable data structure like a HashMap
Map<String, ClassName> employeeMap = new HashMap<>();
employeeMap.add("Tim", new ClassName("Tim","something",9803845994,"something St"));
employeeMap.add("Jack", new ClassName("Jack","something",22222222,"something St"));
No searching is very simple
Employee emp = employeeMap.get("Tim");