Intro to Java

 





































Comments

Post a Comment

Popular posts from this blog

Function/Method in Java

 public class HelloWorld{      public static void main(String []args){       sum();      }    static void sum(){          System.out.println("hello world");      } } public class HelloWorld{      public static void main(String []args){         System.out.println("Hello World");                  int a = sum();         System.out.println(a);      }     static int sum(){         return 20;     } }
Read more

Static vs Dynamic languages

Image
 Static languages :- japar bhi datatype dena padta haa like java (int a, String b) perform type checking at compile time  Error will show at compile time  Declare data type before we use it   (int, String , Float a ) like in java  More control  Dynamic languages : -  jaha par bhi data types mention karna ka jarut an pada like in javascript (var a = 10) Perform type checking at runtime  Error might not show till program is run  No need to declear data type  of variables  save time while writing code but might give error  at runtime * I have to read about runtime error and compile-time error  Memory management  variable refrence and function ka memory stack mae save hota haa vahi par  value or we say object  heap memory mae save hoat haa variable a  reference dea raha haa object 10  ko  Garbage collection :- jab kisi object ka name an ho toa ya garbage collection apena ape remove kar d...
Read more