what is taking port 80 on my mac code example

Example 1: how to port number of 8080 in macos

$ lsof -i :8080 | grep LISTEN

java    42975 mkyong   57u  IPv6 0xf10ca37d995a077f      0t0  TCP *:http-alt (LISTEN)

Example 2: how to port number of 8080 in macos

$ ps -ef 42975

  UID   PID  PPID   C STIME   TTY           TIME CMD
  501 42975 42960   0 12:41PM ??         0:29.84 /Library/Java/JavaVirtualMachines/jdk1.8.0_45.jdk/Contents/Home/bin/java
-Dcatalina.base=/Users/mkyong/Documents/workspace-new/.metadata/.plugins/org.eclipse.wst.server.core/tmp1
-Dcatalina.home=/Users/mkyong/apache-tomcat-8.0.28
-Dwtp.deploy=/Users/mkyong/Documents/workspace-new/.metadata/.plugins/org.eclipse.wst.server.core/tmp1/wtpwebapps
-Djava.endorsed.dirs=/Users/mkyong/apache-tomcat-8.0.28/endorsed
-Dfile.encoding=UTF-8 -classpath /Users/mkyong/apache-tomcat-8.0.28/bin/bootstrap.jar:
/Users/mkyong/apache-tomcat-8.0.28/bin/tomcat-juli.jar:
/Library/Java/JavaVirtualMachines/jdk1.8.0_45.jdk/Contents/Home/lib/tools.jar
org.apache.catalina.startup.Bootstrap start