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Python

What is the lambda function in python? Explain with an example

In python, the Anonymous function (A function without a name) is called lambda function. Lambda function can accept multiple arguments with only one expression. It does not include any statement. ........

For Loop With Two Variables Python

There are multiple ways and scenarios where we can use two different variables in for loop. We will learn in the following ways. ........

Learn cause for Traceback (most recent call last): with a possible Fix

Traceback is an error report occurring while executing Python code that throws an exception... ........

Python Supports the Creation of Anonymous functions at Runtime

Yes. Python supports runtime anonymous functions. A function without any name is known as an anonymous function. ........

Multiples of a Number in python

Multiple of any given number can be determined by following basic rules. ........

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JAVA

Delete Java Object

To delete an object, we can set the object reference to null. However, this does not imply that the waste will be collected right away. ........

Difference Between Method Overloading and Method Overriding in Java

Overriding is a feature in an object-oriented programming language that allows redefining the parent class method in child class (Subclass). ........

Compare Two String Dates in Java with Examples

During development, it is required to compare dates given in string format for some scenarios such as date string was retrieved from the database and required to compare with today’s date or other given string date. ........

What is Constructor in Java with Example Program?

In the current article about what is constructor in java with an example program, we are going to learn.. ........

How to Iterate (Loop) Hashmap in Java With Example

There are multiple ways to loop through hashmap such as For Loop Iteration using Iterator, While Loop iteration ... ........

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PHP

Find PHP date Yesterday with Examples

During development, we met with some scenarios where we require to display the previous date or require to find the n days before the date from now. ........

mysqli_num_rows expects parameter 1

Let's first grasp the definition of mysqli_num_rows before going on to the actual reason and possible solution for the current problem. It will assist us in identifying where we are making errors, particularly for beginners. ........

Object of class mysqli_result could not be converted to String

Basically, the error Object of class [Class name] could not be converted to string will raise whenever we try to use an object as a string. ........

Php header PDF Open in Browser

Before going to learn the use of the PHP header function for a pdf file, we need to understand the header function, its properties, and how it works in short. ........

Call to undefined function mysql_query

The possible cause behind the current undefined mysql_query fatal error arises due to the following reasons: ........

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HTML

DOCTYPE

DOCTYPE (Document type) is used to tell the browser about the version of HTML. Doctype must define at the beginning of the document. Doctype is to be defined as ........

Find Title Tag Must be Within

Html Title tag title represents the title of the document. The title tag is one of the required tags in HTML document which should be well explanatory about the document. ........

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