#2 tcp listener

src/main.rs

@@ -1,3 +1,9 @@
+use std::net::TcpListener;
+
 fn main() {
-    println!("Hello, world!");
+    let listener = TcpListener::bind("127.0.0.1:7878").unwrap();
+    for stream in listener.incoming() {
+        let stream = stream.unwrap();
+        println!("Connection established!");
+    }
 }