Java的IO

import java.util.Scanner;
import javax.swing.JOptionPane;

public class TypeOfIO {
    public static void main(String[] args){
        double value = 0;
        
        JOptionPane.showInputDialog(null,"type zone.","input Demo",JOptionPane.QUESTION_MESSAGE);
        JOptionPane.showMessageDialog(null, "type zone." + value);
        
        Scanner scanner = new Scanner(System.in);
        System.out.println("type zone" + value); //控制台输入输出
        
    }
}