title: Higher lowercase - how to make it equal?
body: <p>I have a textView in which I can search some words and the code for the search is this:</p>
  
  <pre><code>public void btn_search(View view) {
      int total = 0;
      String word_search = Etxt.getText().toString().trim();
      String fullTxt = textView.getText().toString();
      String[] array = fullTxt.split("\n");
      String word;
      StringBuilder st = new StringBuilder();
      for (int i = 0; i &lt; array.length; i++) {
          word = array[i];
          if (word.contains(word_search)) {
              st.append("&lt;b&gt;&lt;i&gt;" + word.trim() + "&lt;/i&gt;&lt;/b&gt;");
              total++;
          } else {
              st.append(word);
          }
          st.append("&lt;br&gt;");
      }
      textView.setText(Html.fromHtml("" + st));
      text_total.setText("Ergebnisse: " + total);
  }
  </code></pre>
  
  <p>Now, the problem is that when I search something, I must pay attention to the higher lower case. And the question is: How can I make the higher lower case equal, so that I can search something without paying attention to this?</p>
  
  <p>Thanks!</p>