OPT.IF

Use conditional operator for "if (cond) return; else return;" statements

Description

This rule flags "if(cond)-else" statements that could be replaced with "return (cond ? x : y)".

The conditional operator provides a single expression that yields one of two values based on a boolean expression. The conditional operator results in a more compact expression.

Example

 package OPT;
 public class IF {
     public int method(boolean isDone) {
         if (isDone) {
             return 0;
         } else {
             return 10;
         }
     }
 }

Repair

If the "if(cond)-else" statements might return a boolean constant, use "return (cond)" instead.

 package OPT;
 public class IF {
     public int method(boolean isDone) {
         return (isDone ? 0 : 10);
     }
 }