Class SwitchYieldPreviewExamples

java.lang.Object
net.jrodolfo.java_evolution.java13.SwitchYieldPreviewExamples
public class SwitchYieldPreviewExamples extends Object
Demonstrates the Java 13 preview refinement that introduced yield in switch expressions.

Java 12 previewed switch expressions and proposed using a break statement with a value when a branch needed to produce a result. Feedback from that preview led Java 13 to replace that design with yield. Block branches still needed a clear way to produce a value when they contained multiple statements.

Java 13 adjusted the switch-expression preview by adding yield. It solves the readability problem by making the branch result explicit. Java 14 later finalized switch expressions with this design.

  • Constructor Details

    • SwitchYieldPreviewExamples

      public SwitchYieldPreviewExamples()

  • Method Details

    • grade

      public String grade(int score)
      Uses yield when a switch branch needs multiple statements.
      Parameters:
      score - a numeric score
      Returns:
      a grade label