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Reports any <code>if</code>, <code>while</code>, <code>do</code>, or <code>for</code> statements without braces.
Some code styles, e.g. the <a href="https://google.github.io/styleguide/javaguide.html">Google Java Style guide</a>,
require braces for all control statements.
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  When adding further statements to control statements without braces, it is important not to forget adding braces.
  When commenting out a line of code, it is also necessary to be more careful when not using braces,
  to