C language network judgment -1116 title -IP

 

Java implementation code:

 

import java.util.Scanner;

public class Practice_1009 {

    public static void main(String[] args) {

        String string = "";
        Scanner scanner = new Scanner(System.in);

        while (scanner.hasNext()) {
            boolean flag = false;
            string = scanner.nextLine();

            if (string.length() > 30) break;
            if (string.contains(" ")) break;            //判断是否有空格
            if (string.equals("End of file")) break;    //判断是否结束

            String x[] = string.split("\\.");      //将输入字符串分离为A、B、C、D形式

            for (int i = 0, j = 0; i < x.length && j < x[i].length(); i++) {

                char num[] = x[i].toCharArray();// convert a string to an array of characters

                IF (by Character.isDigit (NUM [J])!) { 
                    In Flag to false =; 
                    BREAK; 
                } 

                IF (the Integer.parseInt (X [I])> 255 || the Integer.parseInt (X [I]) <0) { 

                    In Flag to false =; 
                    BREAK; 
                } the else 
                    In Flag = to true; 
            } 

            IF (In Flag) 
                System.out.println ( "the Y"); 
            the else 
                System.out.println ( "N"); 
        } 
    } 

} 


still feel vegetables, but also what will not. take it easy.