how to run a java file on terminal code example

Example 1: cmd java compile

javac MyFisrtProgam.java // enter to compile 
  java MyfirstProgram // run program

Example 2: run java from terminal

//Run this line to compile
javac programName.java

//Run this line to run
java programName

Example 3: how to run a java file in terminal

javac FirstJavaProgram.java