S0AQzzKR

1/******************************************************************************
2
3                            Online Java Compiler.
4                Code, Compile, Run and Debug java program online.
5Write your code in this editor and press "Run" button to execute it.
6
7*******************************************************************************/
8
9public class Main
10{
11	public static void main(String[] args) {
12		/*192.168.1.12
13Subnet mask of machine A: 255.255.255.0
14IPv4 address of machine B: 192.168.1.123
15Subnet mask of machine B: 255.255.255.0 */
16        String ip1Arr[] = "192.168.1.12".split("\\.");
17        String mask1Arr[] = "255.255.255.0".split("\\.");
18        int and1[] = new int[ip1Arr.length];
19        
20        for(int i = 0; i<ip1Arr.length;i++){
21           
22            and1[i] = Integer.valueOf(ip1Arr[i])&Integer.valueOf(mask1Arr[i]);
23          
24        }
25       
26        String ip2Arr[] = "192.168.1.123".split("\\.");
27        String mask2Arr[] = "255.255.255.0".split("\\.");
28        int and2[] = new int[ip1Arr.length];
29        
30        for(int i = 0; i<ip2Arr.length;i++){
31           
32            and2[i] = Integer.valueOf(ip2Arr[i])&Integer.valueOf(mask2Arr[i]);
33          
34        }
35        
36        boolean flag = true;
37        for(int i = 0; i<ip2Arr.length;i++){
38         if(and1[i]!=and2[i])
39         {
40             flag = false;
41         }
42         
43        }
44        
45        if(flag){
46            System.out.println("same subnet");
47        }
48        else{
49            System.out.println("not same subnet");
50        }
51        
52
53	}
54}