title: How To Delete String1 from String2 and build a new String2 with remaining string?
body: <p>I have 2 String str1 and str2 and i want to build a updated str2 with the contents which character is not present inside the str1 without using inbuilt function of string.
  String is as follows:</p>
  
  <pre><code>String str1="bdf";
  
  String str2="abc gde fhi**";
  </code></pre>
  
  <p>and output should be like:</p>
  
  <pre><code>"ac ge hi";
  </code></pre>