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                # Scanner() 鍵盤掃描器類包 ## 作用:獲取輸入的鍵盤碼 ## 實例化使用 ``` Scanner sc= new Scanner(System.in); System.out.print("請錄入年齡:"); int age=sc.nextInt(); ``` ``` import java.util.Scanner; public class TestVar12{ public static void main(String[] args){ //鍵盤錄入學生的信息:年齡,身高,姓名,性別: Scanner sc= new Scanner(System.in); System.out.print("請錄入年齡:"); int age=sc.nextInt(); //鍵盤錄入身高:(接受double類型數據) System.out.print("請錄入身高:"); double heigh=sc.nextDouble(); //鍵盤錄入姓名 System.out.print("請錄入姓名:"); String name =sc.next(); //鍵盤錄入性別(接受char) System.out.print("請錄入性別:"); char sexStr=sc.next().charAt(0); System.out.print("該學生的信息為:姓名:"+name+"年齡:"+age+"身高:"+heigh+"米"+"性別:"+sexStr); } } ```
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