title: How to search for ID number in java?
body: <p>My problem is I need to make a program where you can search for an employee based on their ID number. Which needs to be something like &quot;E1&quot; or &quot;E2&quot;. I am struggling to find a way to search for numbers and letters in the same object. It only works when I use just a number like 1 or 2 by using Int.</p>
  <p>How can I store both a letter and integer in an object? Is there something similar to String that stores letters or Int that stores numbers but for both letters and numbers?</p>
  <p>Ex. I can search for my employe already but their ID is currently just &quot;1&quot; or &quot;2&quot; or &quot;3&quot;. I need to change it to &quot;E1&quot; or &quot;E2&quot; etc. But it wont work with String or Int.</p>
  <p>I am searching an array. In an employee class</p>