Usage of final keyword in java
Final Keyword In Java 1) Java final variable If you make any variable as final, you cannot change the value of final variable(It will be constant). final int ACK //(generally it is the convention to give capital letters to the final variable we declare) It dosent occupy space in memory for multiple executions. Its good that it saves memory 2) Java final method If you make any method as final, you cannot override it. class bird{ final void run(){System.out.println( "running" );} } class animal extends bird{ void run(){System.out.println( "animals eat birds" );} public static void main(String args[]){ animal lion= new animal(); animal.run();...