摘要：
package scanner;import java.util.Scanner;public class Demo04 { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); doub 阅读全文
摘要：
package scanner;import java.util.Scanner;public class Demo03 { public static void main(String[] args) { Scanner scanner=new Scanner(System.in); //从键盘接 阅读全文
摘要：
next()的应用package scanner;import java.util.Scanner;public class Demo01 { public static void main(String[] args) { //创建一个扫描器对象 Scanner scanner = new Sca 阅读全文