First java Program

 every  thing is class like 

file ka name .java sa save hota haa jo je ake class haa

class Main{

}

java par bhi  Capital letter sa start ho vo Class ka under ata haa 

class ka matlab name,group of properties and function

class are know as method 


Scanner jo haa onput lana ka lia 

System.in    ka matlab haa keybord sa input lana ka lia 


Type Casting :- 
























Comments

Post a Comment

Popular posts from this blog

Scoping and Variablelength Arruguments

Image
 public class HelloWorld{      public static void main(String []args){         System.out.println("Hello World"); int b = 200;       sum();      }      static void sum(){          int a  = 100;                    System.out.println(a);      } } function scoping jasa ya sum() wala method ka under hum b ko access nahi kar sakta because wo function scope ka bahar haa  sum(){ }  Block level scope { } public class HelloWorld{      public static void main(String []args){         System.out.println("Hello World")         {             int c = 100;         }         System.out.println(c);      } } asa karana ga toa error aya ga because hum block ka bhar c ko print karwa...
Read more