You are looking at the HTML representation of the XML format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the XML format, set format=xml.
See the complete documentation, or API help for more information.
<?xml version="1.0"?>
<api>
  <query-continue>
    <alllinks galcontinue="JavaでHMAC-SHA256を計算する" />
  </query-continue>
  <query>
    <pages>
      <page pageid="30" ns="0" title="Error launching Android Studio" />
      <page pageid="16" ns="0" title="HashMap" />
      <page pageid="21" ns="0" title="IntStream" />
      <page pageid="44" ns="0" title="JUnit" />
      <page pageid="35" ns="0" title="Java スレッドの同期 wait notify notifyAll" />
      <page pageid="36" ns="0" title="Java スレッドをスリープさせる方法" />
      <page pageid="52" ns="0" title="Javadoc" />
      <page pageid="19" ns="0" title="JavaからJNIでC言語プログラムを呼び出す" />
      <page pageid="13" ns="0" title="Javaで10進数を2進数と8進数と16進数に変換する方法" />
      <page pageid="31" ns="0" title="JavaでC言語のdefineの定数定義に相当するものは" />
    </pages>
  </query>
</api>