java键盘录入数据打印输出数据

录入数据

public class Main {
    public static void main(String[] args) {
      
        Scanner number = new Scanner(System.in);
        
        int a=number.nextInt();
        double b=number.nextDouble();
        String c=number.next();
        
        System.out.println(a);
        System.out.println(b);
        System.out.println(c);
    }
}

如上图所示，录入数据

int为 int a=number.nextInt();

double为double b=number.nextDouble();

String为String c=number.next();

输出数据

 System.out.println(a);
 System.out.println(b);
 System.out.print(c);

println即输出后换行

print输出