Redundant Boolean literals should be removed from expressions to improve readability.
Noncompliant Code Example
if (booleanMethod() == true) { /* ... */ }
if (booleanMethod() == false) { /* ... */ }
if (booleanMethod() || false) { /* ... */ }
doSomething(!false);
doSomething(booleanMethod() == true);
booleanVariable = booleanMethod() ? true : false;
booleanVariable = booleanMethod() ? true : exp;
booleanVariable = booleanMethod() ? false : exp;
booleanVariable = booleanMethod() ? exp : true;
booleanVariable = booleanMethod() ? exp : false;
Compliant Solution
if (booleanMethod()) { /* ... */ }
if (!booleanMethod()) { /* ... */ }
if (booleanMethod()) { /* ... */ }
doSomething(true);
doSomething(booleanMethod());
booleanVariable = booleanMethod();
booleanVariable = booleanMethod() || exp;
booleanVariable = !booleanMethod() && exp;
booleanVariable = !booleanMethod() || exp;
booleanVariable = booleanMethod() && exp;
