一、如何從鍵盤獲取不同類型的變量,需要使用Scanner類
具體步驟:
1.導包:import Java.util.Scanner;
2.Scanner的實現化:Scanner scan = new Scanner(System.in);
3.調用Scanner類的相關方法(next()/nextXxx()),來獲取類型的變量
代碼:
import java.util.Scanner;
class ScannerTest{
public static void main(String[] args){
Scanner scan = new Scanner(System.in);
System.out.println("請輸入你的姓名:");
String name = scan.next();
System.out.println(name);
System.out.println("請輸入你的性別(true/false)");
boolean sex = scan.nextBoolean();
System.out.println(sex);
System.out.println("請輸入你的芳齡:");
int age = scan.nextInt();
System.out.println(age);
System.out.println("請輸入你的體重:");
double weight = scan.nextDouble();
System.out.println(weight);
}
}
運行結果: