import java.util.Scanner;public class Test { public static void main(String[] args) { Scanner sc = new Scanner(System.in);System.out.println("输入第一个数:");int a = sc.nextInt();System.out.println("输入第二个数:");int b = sc.nextInt();System.out.println("输入第...
import java.util.Scanner;public class Test{public static void main(String args[]){Scanner scan = null ;int num = 0;try{scan = new Scanner(System.in);num = scan.nextInt();}catch(Exception e){System.out.println("Exception: " +e.getMessage());}int count = 0;for(int i ...
在Java编程语言中,为了实现从键盘读取单个字符的功能,可以使用"Scanner"类。具体实现方法是,在程序中引入"java.util.Scanner"包,然后创建一个Scanner对象,该对象作为输入的入口。下面是一个示例代码:import java.util.Scanner;public class Test { public static void main(String[] args) { Scanner...
import java.util.*;public class App5_8 { public static void main(String []args){ System.out.println("请输入一个字符串:");String str = new Scanner(System.in).nextLine();System.out.println("请输入子串开始位置:");int str1 = new Scanner(System.in).nextInt();System.out.pri...
import java.io.InputStreamReader;public class Test { public static void main(String args[]) { System.out.println("请输入三个数,使用','分隔:");BufferedReader br = new BufferedReader(new InputStreamReader(System.in));try { String tempString = "";while (null != (tempString =...