void sendMessage(){

System.out.println("screen:"=screen+"cpu:"=cpu+"mem:"=mem+"Telphone有打電話的功能");

}

為什么我輸入這個就報錯，只有引號里面的單詞好像是成員變量，沒打引號的就不是，這個如何解決？

報錯內容：

Multiple markers at this line

- The left-hand side of an assignment must be a?

variable

- Syntax error, insert ")" to complete Expression

- Syntax error on token "+", ( expected after this?

token

- The left-hand side of an assignment must be a?

variable