Final Finally Finalize

class FinalExample{
public static void main(String[] args){
final int x=100;
x=200;//Compile Time Error
}}

class FinallyExample{
public static void main(String[] args){
try{
int x=300;
}catch(Exception e){System.out.println(e);}
finally{System.out.println("finally block is executed");}
}}

class FinalizeExample{
public void finalize(){System.out.println("finalize called");}
public static void main(String[] args){
FinalizeExample f1=new FinalizeExample();
FinalizeExample f2=new FinalizeExample();
f1=null;
f2=null;
System.gc();
}}

Final is used to apply restrictions on class, method and variable. Final class can't be inherited, final method can't be overridden and final variable value can't be changed.

Finally is used to place important code, it will be executed whether exception is handled or not.

Finalize is used to perform clean up processing just before object is garbage collected.

Final is a keyword.

Finally is a block.

Finalize is a method.