diferents ways to execute switch statement in Java

TestSwitchStatement.java

package jvm.pablohdz.restapidesignpatterns;

public class TestSwitchStatement {
  
  public void classicVersion(int number) {
    switch (number) {
      case 1:
        callMethod("one");
        break;
      case 2:
        callMethod("two");
        break;
      default:
        callMethod("many");
        break;
    }
  }
  
  public void classicVersion2(int number) {
    switch (number) {
      case 1:
      case 2:
        callMethod("few");
        break;
      default:
        callMethod("many");
        break;
    }
  }
  
  public void arrowVersion(int number){
    switch (number) {
      case 1 -> callMethod("one");
      case 2 -> callMethod("two");
      default -> callMethod("many");
    }
  }
  
  public void arrowVersionTwo(int number){
    switch (number) {
      case 1 -> {
        var str = "one";
        callMethod(str);
      }
      case 2 -> {
        var str = "two";
        callMethod(str);
      }
      default -> {
        var str = "many";
        callMethod(str);
      }
    }
  }
  
  public void arrowVersionThree(int number){
    var string = switch (number) {
      case 1 -> "one";
      case 2 -> "two";
      default -> "many";
    };
    
    callMethod(string);
  }
  
  public enum Count {
    ONE, TWO, MANY
  }
  
  public void arrowVersionFour(Count count) {
    var string = switch (count) {
      case ONE -> "one";
      case TWO -> "two";
      case MANY -> "many";
    };
    
    callMethod(string);
  }
  
  public void arrowVersionFive(int number) {
    switch (number) {
      case 1 -> callMethod("one");
      case 2 -> callMethod("two");
      default -> callMethod("many");
    }
  }
  
  public void arrowVersionSix(int number) {
    var string = switch (number) {
      case 1, 2 -> "fex";
      default -> "many";
    };
  }
  
  public void arrowVersionSeven(Object object) {
    switch (object) {
      case String str -> callMethod(str);
      case Number i -> callMethod(i.toString());
      default -> throw new IllegalStateException("Unexpected value: " + object);
    };
  }

  private void callMethod(String one) {}
}