java流程控制之Scanner(1)
阿新 • • 發佈:2021-07-29
package scanner; import java.util.Scanner; public class Demo01 { public static void main(String[] args) { scanner(); scanner2(); scanner3(); } public static void scanner(){ Scanner scanner = new Scanner(System.in); System.out.println("next方式接收:"); if (scanner.hasNext()){ String str= scanner.next() ; System.out.println("輸入內容為:"+str); } // scanner.close(); } public static void scanner2(){ Scanner scanner = new Scanner(System.in); System.out.println("nextLine方式接收:"); if (scanner.hasNextLine()){ String srt=scanner.nextLine(); System.out.println("輸入內容為:"+srt); } // scanner.close(); } public static void scanner3(){ Scanner scanner = new Scanner(System.in); System.out.println("請輸入資料 :"); String str = scanner.next(); System.out.println("next===>輸入內容為:"+str); String res = scanner.nextLine(); System.out.println("nextLine==>輸入內容為:"+res); scanner.close(); } }