How to use state Variable for stored values permanently in a contract storage in solidity ?

  How to use state Variable for stored values permanently in a contract storage in solidity ?


pragma solidity ^0.5.0;

contract SolidityTest {

   uint storedData;      // State variable

   constructor() public 

{

      storedData = 10;   // Using State variable

   }

}

Comments

Post a Comment

Last 7 Days

How do you give an < image > a tag?

  How do you give an < image > a tag? To use an image on a webpage, use the <img> tag. The tag allows you to add image source, alt, width, height, etc. The src is to add the image URL. The alt is the alternate text attribute, which is text that is visible when the image fails to load. Note: This will only work on your local system since the path is your local drive. How to use < img > tag in HTML <html>    <head>       <title>          HTML img tag       <title>    </head>    <body>       <img src="file:/D:/images/logo.png"  alt="Site Cover Image" width="50" height="50">    </body> </html>
Read more

How to use referrerpolicy Attribute value (strict-origin ) with < iframe > tag in HTML ? with example

 How to use referrerpolicy Attribute value (strict-origin ) with < iframe > tag in HTML ? with example  Referrerpolicy Attribute value (strict-origin )  Only send referrer info if the security level is the same (e.g. HTTPS to HTTPS). Do not send to a less secure destination (e.g. HTTPS to HTTP). Example <html> <body> <h1>The iframe referrerpolicy attribute Example</h1> <iframe src ="https://tech.thinkforu.org"  referrerpolicy=" strict-origin "> </iframe> </body> </html>
Read more

Difference between Public vs Internal vs Private state variables in solidity programming langauge with example ?

 Difference between Public vs Internal vs Private state variables in solidity programming langauge with example ? Public state variables can be accessed internally as well as via messages. For a public state variable, an automatic getter function is generated.  Internal state variables can be accessed only internally from the current contract or contract deriving from it without using this.  Private state variables can be accessed only internally from the current contract they are defined not in the derived contract from it. Example of   Public vs Internal vs Private state variables pragma solidity ^0.5.0; contract C {    uint public data = 30;    uint internal iData= 10;        function x() public returns (uint) {       data = 3; // internal access       return data;    } } contract Caller {    C c = new C();    function f() public view returns (uint) {  ...
Read more

Why TD is used in HTML?

 Why TD is used in HTML? HTML <td> tag .  When writing in HTML, the <td> tag is used to designate a cell (table data) within a table containing data.  The information contained in this element is left-aligned by default. How to use <td> tag in table in html <tr > <td> first </td>  <td>Second</td> </tr>
Read more

How to use comments in Solidity programming language ?

 How to use comments in Solidity programming language ?  function getResult() public view returns(uint) {    // This is a comment. It is similar to comments in C++    /*       * This is a multi-line comment in solidity       * It is very similar to comments in C Programming    */    uint a = 1;    uint b = 2;    uint result = a + b;    return result; }
Read more