TypecastParenPad

Since Checkstyle 3.2

Description

Checks the policy on the padding of parentheses for typecasts. That is, whether a space is required after a left parenthesis and before a right parenthesis, or such spaces are forbidden.

Properties

name	description	type	default value	since
option	Specify policy on how to pad parentheses.	PadOption	`nospace`	3.2

Examples

To configure the check:


<module name="Checker">
  <module name="TreeWalker">
    <module name="TypecastParenPad"/>
  </module>
</module>

Example:


class Example1 {
  double d = 3.14;

  int a = ( int ) d;  // 2 violations

  int b = (int ) d;   // violation 'preceded with whitespace'

  int c = ( int) d;   // violation 'followed by whitespace'

  int e = (int) d;

  double d2 = 9.8;

  int f = (int) d2;

  int g = ( int ) d2; // 2 violations
}

To configure the check to require spaces:


<module name="Checker">
  <module name="TreeWalker">
    <module name="TypecastParenPad">
      <property name="option" value="space"/>
    </module>
  </module>
</module>

Example:


class Example2 {
  double d = 3.14;

  int a = ( int ) d;

  int b = (int ) d; // violation 'not followed by whitespace'

  int c = ( int) d; // violation 'not preceded with whitespace'

  int e = (int) d;  // 2 violations

  double d2 = 9.8;

  int f = (int) d2; // 2 violations

  int g = ( int ) d2;
}

Example of Usage

Violation Messages

All messages can be customized if the default message doesn't suit you. Please see the documentation to learn how to.

Fully Qualified Name

com.puppycrawl.tools.checkstyle.checks.whitespace.TypecastParenPadCheck

Use this fully qualified class name in configuration when an exact class reference is required.

Parent Module

TreeWalker