title: when using a array of strings in java, convert it to lowercase
body: <p>I got a one dimensional array of strings in java, in which i want to change all strings to lowercase, to afterwards compare it to the original array so i can have the program check whether there are no uppercase chars in my strings/array.</p>
  
  <p>i've tried using x.toLowercase but that only works on single strings.
  Is there a way for me to convert the whole string to lowercase?</p>
  
  <p>Kind regards,
  Brand</p>