JAVA Day6

JAVA Day6

Scanner对象(上)

package Scanner;
import java.util.Scanner;
public class Demo01 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.println("使用Next方式接收:");
        //判断用户有没有输入字符串
        if(scanner.hasNext()){
            //使用next接收
            String str = scanner.next();
            System.out.println("输出的内容为:"+str);
        }
        scanner.close();

    }
}
//输入Hello World 输出结果为Hello

package Scanner;
import java.util.Scanner;
public class Demo02 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.println("使用nextLine方式接收:");
        if(scanner.hasNextLine()){
            String str = scanner.nextLine();
            System.out.println("输出内容为:"+str);
        }
        scanner.close();
    }
}
//输入Hello World 输出结果为Hello World