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                        /Java入門第一季（IDEA工具）升級版

提示無法將字符串類型轉換為字符型，這個報錯是怎么引起的呢

HelloWorld.java:6:?error:?incompatible?types:?String?cannot?be?converted?to?char
		????case?"一":
		?????????^
HelloWorld.java:7:?error:?incompatible?types:?String?cannot?be?converted?to?char
		????case?"三":
		?????????^
HelloWorld.java:8:?error:?incompatible?types:?String?cannot?be?converted?to?char
		????case?"五":
		?????????^
HelloWorld.java:11:?error:?incompatible?types:?String?cannot?be?converted?to?char
		????case?"二":
		?????????^
HelloWorld.java:12:?error:?incompatible?types:?String?cannot?be?converted?to?char
		????case?"四":
		?????????^
HelloWorld.java:13:?error:?incompatible?types:?String?cannot?be?converted?to?char
		????case?"六":
		?????????^
HelloWorld.java:16:?error:?incompatible?types:?String?cannot?be?converted?to?char
	????????case?"日":
	?????????????^
7?errors