java中如何用scanner實現輸入數據？

java中Scanner類常用來進行數據的輸入。

Scanner 類在java.util包中。

操作實例：

import java.util.Scanner;

public class Main {

public static void main(String args[]){

Scanner sc = new Scanner(System.in);

System.out.print("imput name:");

String name = sc.nextLine();

System.out.print("input age:");

int age = sc.nextInt();

System.out.print("input height:");

float height = sc.nextFloat();

System.out.print("name:" + name + "\n" + "age:" + age + "\n" + "height:" + height);

}

}

輸出結果如下圖：