小编Jun*_*ail的帖子

package com.learningjava.conditionals;

public class SwitchExcercises {

    public static boolean isWeekDay(int dayNumber) {
        switch (dayNumber) {
        case 0:
        case 1:
        case 2:
        case 3:
        case 4:
            return true;
        case 5:
        case 6:
            return false;
        case default:
            return false;
        }
    }
}

我正在使用 Eclipse 作为我的 ide。说，在默认情况下显示错误

The preview feature Pattern Matching in Switch is only available with source level 20 and above.

使用 java-se 17。感谢您的帮助。