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.Basics...arrayy.sol

// SPDX-License-Identifier: MIT
pragma solidity 0.8.0;

//fixed arrays
contract arrays {
    uint[4] public id = [5, 10, 15, 20];

    function size(uint no, uint new_id) public  {
        id[no] = new_id;
    }
     
     function len()public view returns(uint) {
        return id.length;
     }
    
}

.Basics...booll.sol

// SPDX-License-Identifier: MIT
pragma solidity 0.8.0;

contract booll {
    function apple(int figure) pure public returns (bool ) {
    bool units = true;
    if (figure > 1) {
        return units;
    }
    units = false;
    return units;
    }
}

.Basics...constructor.sol

// SPDX-License-Identifier: MIT
pragma solidity 0.8.0;

contract constructorr {
    uint public size;

constructor (uint newsize) {
    size = newsize;
}

    
}

.Basics...D_arrayy.sol

// SPDX-License-Identifier: MIT
pragma solidity 0.8.0;



contract dynamic_arrays {
    uint[] public kano=[4];

    function adder(uint king) public {
        kano.push(king);
    }
    
    function remover() public  {
        kano.pop();
    }

    function lenth() public view returns (uint) {
        return kano.length;
    }
    
}

.Basics...demo.sol

// SPDX-License-Identifier: MIT
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

contract demo
 {
    int number;
    constructor() {
        number = 5;
    }

    function getter () public view returns (int)
     {
        return number;
    }

    function setter() public {
        number=number+1;
    }

 }

.Basics...function.sol

// SPDX-License-Identifier: MIT
pragma solidity 0.8.0;

contract functionn
 {

    int public age = 10;
    string public  name = "husteemah";

    function adder() public  {
        age = age+1;
    }

    function disrupt(int newage, string  memory newname)public {
        age = newage;
        name = newname;
    }
    
} 

.Basics...hello.sol

// SPDX-License-Identifier: MIT
pragma solidity >=0.7.0 <0.9.0 ;
contract demo 
{
    string public greetings = "Hello World";
}

.Basics...if_else.sol

// SPDX-License-Identifier: MIT
pragma solidity 0.8.0;

contract statement {
    

    function cheker(int num) public pure returns ( string memory ) {
        string memory answer;

        if (num > 0) {
            answer = "the input is greater than zero and true";
        }
        else if (num ==0) {
            answer = "the input is greater than - and les than +";
        } else {
            answer = "then input is lesser than zero";
        }
        return answer;
    }
        
    
}

.Basics...local.sol

// SPDX-License-Identifier: MIT
pragma solidity  0.8.0;

contract local {
// declearing local variable 
 function gett () public pure returns (uint) {
 uint age = 20;
 return age; 
 }



} 

.Basics...sting.sol

// SPDX-License-Identifier: MIT
pragma solidity 0.8.0;

contract stringg {
    string public gm = "hello wor;d"; 

    function japaneese() public pure returns (string memory) {
        string memory gm2= "ohayouuuuuuu";
        return gm2;
    }  
}

.Basics...stste.sol

// SPDX-License-Identifier: MIT
pragma solidity 0.8.0;

// states in solidity > stored on chain and exucutes with ether
contract state {
    uint public age ;
    string public name = "husteemah";

    // constructor ()  {
    //     age = 20;
    // } 
    function getter () public {
        age= 30;
    }
    function adder () public {
        age = age+2;
    }
}