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"java"
How to set cookies to expire in 30 minutes in JavaScript?
You can set cookies to expire in 30 minutes in JavaScript by using the setTime() and getTime() methods.
Example:
let thirtyMinutes = 30 * 60 * 1000;
let date = new Date(Date.now() + thirtyMinutes);
document.cookie = `mycookie=myvalue;expires=${date.toUTCString()};path=/;`;
Date:2023-01-09
How to connect to Oracle database using Java?
In order to connect to an Oracle database using Java, you need to use the Oracle JDBC driver.
Steps:
1. Download the Oracle JDBC driver from Oracle website if you don’t have it already.
2. Add the JDBC driver to your classpath.
3. Create a Properties object to pass in the connection details.
4. Create a connection URL string specifying the database URL.
5. Create a Connection object by passing in the connection URL and the Properties object.
6. Execute your queries against the Connection object.
7. Close the Connection object when finished.
Date:2023-01-09
How to add JavaScript code to HTML file?
To add JavaScript code to your HTML file, you need to place the code in-between <script></script> tags, depending on where in the HTML file you'd like the code to be executed. For example:
<!DOCTYPE html>
<html>
<head>
<title>My Page</title>
</head>
<body>
<h1>My Page</h1>
<script>
console.log("Hello, world!");
</script>
</body>
</html>
Date:2023-01-09
How does rest assured test a Java application?
Rest Assured can be used to test a Java application by first setting up an environment and an HTTP client – this will allow Rest Assured to issue HTTP requests (such as GET and POST requests) to the application under test. With the HTTP client in place, Rest Assured will then be used to create and send requests, with parameters and headers as needed, and to make assertions about the response data in order to validate the expected behavior.
Date:2023-01-09
How to call a method on a child component in JavaScript?
To call a method on a child component in JavaScript, you can use the ref callback technique. To do this, you will first need to assign a ref to the child component and then call the method you want to execute on the ref.
For example:
// Parent component
class ParentComponent extends React.Component {
constructor(props) {
super(props);
this.childRef = React.createRef();
}
onButtonClick = () => {
this.childRef.current.myMethod();
}
render() {
return (
<div>
<ChildComponent ref={this.childRef} />
<button onClick={this.onButtonClick}>Call Child Method</button>
</div>
);
}
}
// Child component
class ChildComponent extends React.Component {
myMethod(){
console.log('Method called from parent component');
}
render() {
return <div>Child Component</div>
}
}
Date:2023-01-08
What is Java 8 Base64 encoding without padding?
Java 8 Base64 encoding without padding is a form of Base64 encoding which does not include the equals sign (=) at the end of the encoded data. This type of encoding is often used in URLs where the equals sign can be a valid character, making it not suitable for use.
Date:2023-01-08
How to declare an abstract class in Java?
Abstract classes are declared in Java with the keyword abstract.
Example:
public abstract class MyAbstractClass {
// fields and methods
}
Date:2023-01-08
What are the expressions in JavaScript?
Expressions in JavaScript are used to produce or calculate a value and turn it into a data type, such as a number, a string, or a Boolean value. Some examples of expressions include arithmetic operators (e.g. +, -, /, *), comparison operators (e.g. ===, !=, <, >), and logical operators (e.g. &&, ||).
Date:2023-01-08
What is the JavaScript Geolocation API and how to use it?
The Geolocation API is an API that allows web developers to access a user's location information from the browser. It allows websites to ask for permission to access a user's geographical location data and make use of it. This API can be used in order to detect a user's current geographic location, whether that be latitude and longitude coordinates, as well as detailed information such as altitude and speed.
It is possible to use the Geolocation API in JavaScript by using the navigator.geolocation object. This object contains several methods that allow you to get a user's location, watch changes in the user's position over time, and also query the user's location for address information. An example of how to use the Geolocation API in JavaScript is as follows:
// Get user's current position
navigator.geolocation.getCurrentPosition(function(position) {
console.log(position.coords.latitude, position.coords.longitude);
});
// Watch for changes in the user's position
var positionWatch = navigator.geolocation.watchPosition(function(position) {
console.log(position.coords.latitude, position.coords.longitude);
});
// Stop watching for position changes
navigator.geolocation.clearWatch(positionWatch);
Date:2023-01-08
What is bytecode in Java?
Bytecode is an instruction set used by a virtual machine to execute program code. It is a compiled version of the source code written in the Java programming language. Bytecode is platform-independent and is normally compiled into a file format that is platform-independent.
Date:2023-01-08
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What are the system requirements for installing the JDK and JRE?
The system requirements vary depending on the version of the JDK and JRE. Generally speaking, any Intel or AMD-based machine with a minimum of 2GB of RAM and an operating system such as Windows 7, 8, or 10, OS X 10.8 or higher, or any recent Linux distribution should be able to run the JDK and JRE.
What is the best renderer for Jupyter notebooks?
The best renderer for Jupyter notebooks is nbconvert, which is a part of the Jupyter Notebook package. Nbconvert is a converter that enables users to convert a Jupyter notebook into another file format such as HTML, PDF, LaTeX, and many more. It is open-source and provides a lot of flexibility for users to customize the conversion of their notebooks. Additionally, nbconvert also allows for automatic publishing of notebooks and supports multiple languages.
Why does it say connected no Internet?
Connected No Internet most likely means that your device is connected to a Wi-Fi network, but that there is no internet connection available on the network. This could be due to a range of issues, such as the network being down, the settings of the router being incorrect, or the router not having a connection to the internet.
What is webservice in Excel?
In Excel, a web service is a web application that provides access to server-side code through a standard web-based protocol such as HTTP.A web service triggers an Excel file that can be formatted to display the data from the web service. This means the data from the web service can be accessed, manipulated, and shared in Excel with ease.
What are the duties of an employer under OSHA?
1. Provide a workplace free of recognized hazards
2. Ensure that employees have and use safe tools and equipment
3. Train employees on safety procedures and how to use protective equipment
4. Post information for employees about their rights under OSHA and other safety laws
5. Develop and implement an accident prevention program
6. Keep accurate records of work-related injuries and illnesses
7. Provide medical examinations and other health-related services as required
8. Post federal OSHA job safety and health standards, as well as any applicable state standards
9. Notify OSHA of any workplace incident that results in death, injury and/or illness
10. Comply with requirements for reporting, investigations, abatement, and record-keeping
11. Take appropriate corrective action to correct workplace hazards
How much for a yard of topsoil?
The price for a yard of topsoil varies and is dependent on several factors such as the geographic location, the quality of the soil, and whether it is delivered or purchased in bulk. Generally, a yard of topsoil ranges from $35-60.
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