java - not able to connect through socket -

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i trying connect 2 computers using socket connection. tried code on same computer entering own ip address. works. it's not working in between 2 computer @ home. similar code did worked on college computers. server side code

    import java.io.ioexception;     import java.net.serversocket;     import java.net.socket;       public class testserver {         public static void main(string[] args) {             serversocket listener = null;             try {                 listener = new serversocket(7689);                 socket other = listener.accept();                 system.out.println("connected");             } catch (ioexception e) {                 e.printstacktrace();             }         }     }

this client side code

    import java.io.ioexception;     import java.net.socket;     import java.net.unknownhostexception;     import java.util.scanner;       public class testclient {         public static void main(string[] args) {             scanner sc = new scanner(system.in);             system.out.println("enter ip");             string ip=sc.next();             try {                 socket s = new socket(ip,7689);                 system.out.println("connected");             } catch (ioexception e) {                 e.printstacktrace();             }         }     }

on server computer typed ifconfig got line

eth0      link encap:ethernet  hwaddr f0:1f:af:17:26:db             broadcast multicast  mtu:1500  metric:1           rx packets:0 errors:0 dropped:0 overruns:0 frame:0           tx packets:0 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:1000            rx bytes:0 (0.0 b)  tx bytes:0 (0.0 b)  lo        link encap:local loopback             inet addr:127.0.0.1  mask:255.0.0.0           inet6 addr: ::1/128 scope:host           loopback running  mtu:65536  metric:1           rx packets:51 errors:0 dropped:0 overruns:0 frame:0           tx packets:51 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:0            rx bytes:5083 (5.0 kb)  tx bytes:5083 (5.0 kb)  wlan0     link encap:ethernet  hwaddr bc:85:56:49:dc:3d             inet addr:192.168.0.48  bcast:192.168.0.255  mask:255.255.255.0           inet6 addr: fe80::be85:56ff:fe49:dc3d/64 scope:link           broadcast running multicast  mtu:1500  metric:1           rx packets:62 errors:0 dropped:0 overruns:0 frame:0           tx packets:94 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:1000            rx bytes:13422 (13.4 kb)  tx bytes:15688 (15.6 kb)

and using ip address server inet addr:127.0.0.1 next started server code nothing happens there

on client side typed ifconfig too

ifconfig eth0      link encap:ethernet  hwaddr 9c:b6:54:c5:18:db            broadcast multicast  mtu:1500  metric:1           rx packets:0 errors:0 dropped:0 overruns:0 frame:0           tx packets:0 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:1000           rx bytes:0 (0.0 b)  tx bytes:0 (0.0 b)  lo        link encap:local loopback            inet addr:127.0.0.1  mask:255.0.0.0           inet6 addr: ::1/128 scope:host           loopback running  mtu:65536  metric:1           rx packets:269 errors:0 dropped:0 overruns:0 frame:0           tx packets:269 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:0           rx bytes:25160 (25.1 kb)  tx bytes:25160 (25.1 kb)  wlan0     link encap:ethernet  hwaddr 80:56:f2:49:dc:0c            inet addr:192.168.2.13  bcast:192.168.2.255  mask:255.255.255.0           inet6 addr: fe80::8256:f2ff:fe49:dc0c/64 scope:link           broadcast running multicast  mtu:1500  metric:1           rx packets:3842 errors:0 dropped:0 overruns:0 frame:0           tx packets:3405 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:1000           rx bytes:2981248 (2.9 mb)  tx bytes:1352577 (1.3 mb)

then started client side code on other computer after while comes up

java testclient enter ip 192.168.0.48 java.net.socketexception: invalid argument or cannot assign requested address     @ java.net.plainsocketimpl.socketconnect(native method)     @ java.net.abstractplainsocketimpl.doconnect(abstractplainsocketimpl.java:339)     @ java.net.abstractplainsocketimpl.connecttoaddress(abstractplainsocketimpl.java:200)     @ java.net.abstractplainsocketimpl.connect(abstractplainsocketimpl.java:182)     @ java.net.sockssocketimpl.connect(sockssocketimpl.java:392)     @ java.net.socket.connect(socket.java:579)     @ java.net.socket.connect(socket.java:528)     @ java.net.socket.<init>(socket.java:425)     @ java.net.socket.<init>(socket.java:208)     @ testclient.main(testclient.java:13)


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