SolidtyCode different programs on solidity programing language Hello World Counter here increment decrement of number is happening using solidity Variables and Dataypes Functions Operators Arithematic Relational Logical Bitwise Assignment Ternary Conditionals IF If else If else If Loops While Loop Arrays get Array and upadte at fixed index ArrayLength push method pop Struct return one element Struct with array Mappings Conditionals and Loop ##Hotel Room Booking Inheritance and factories