Jerad  Bailey

Jerad Bailey

1596199200

Setting Formulas in Excel with Apache POI

1. Overview

In this quick tutorial, we’re going to talk about how we can **set formulas in a Microsoft Excel spreadsheet **using Apache POIthrough a simple example.

2. Apache POI

Apache POI is a popular open-source Java library that provides programmers with APIs to create, modify, and display MS Office files.

It uses Workbook to represent an Excel file and its elements. A Cell in an Excel file can have different types such as FORMULA.

In order to see Apache POI in action, we’re going to set a formula to subtract the sum of the values in columns A and B in an Excel file. The linked file contains the data below:

#data #java #excel

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Setting Formulas in Excel with Apache POI
Gerhard  Brink

Gerhard Brink

1622622360

Data Validation in Excel

Data Validation in Excel

In this tutorial, let’s discuss what data validation is and how it can be implemented in MS-Excel. Let’s start!!!

What Is Data Validation in Excel?

Data Validation is one of the features in MS-Excel which helps in maintaining the consistency of the data in the spreadsheet. It controls the type of data that can enter in the data validated cells.

Data Validation in MS Excel

Now, let’s have a look at how data validation works and how to implement it in the worksheet:

To apply data validation for the cells, then follow the steps.

1: Choose to which all cells the validation of data should work.

2: Click on the DATA tab.

3: Go to the Data Validation option.

4: Choose the drop down option in it and click on the Data Validation.

data validation in Excel

Once you click on the data validation menu from the ribbon, a box appears with the list of data validation criteria, Input message and error message.

Let’s first understand, what is an input message and error message?

Once, the user clicks the cell, the input message appears in a small box near the cell.

If the user violates the condition of that particular cell, then the error message pops up in a box in the spreadsheet.

The advantage of both the messages is that the input and as well as the error message guide the user about how to fill the cells. Both the messages are customizable also.

Let us have a look at how to set it up and how it works with a sample

#ms excel tutorials #circle invalid data in excel #clear validation circles in excel #custom data validation in excel #data validation in excel #limitation in data validation in excel #setting up error message in excel #setting up input message in excel #troubleshooting formulas in excel #validate data in excel

Ananya Gupta

1604922206

Top 7 Advantages Of Advanced Excel Learning

Advanced Excel Certification offers numerous job opportunities that have come up. Lately, companies search for a talented personality who holds great knowledge in excel. However, simply basic knowledge isn’t sufficient. If you would like to be a part of a well-renowned company then you want to have the excel certification matching industrial standards.

Whether you’re seeking higher growth within an equivalent company or expecting an honest hike from the new company, complicated excel training courses with certification can surely increase your chances to be on the brink of the success ladder. Join an advanced online excel training class and improve your skills.

Know More About Advanced Excel?

The word itself explains the meaning of this course. this is often one quite skill that sets a learning benchmark for MS Excel. It offers a transparent insight to all or any of the simplest and therefore the most advanced features that are now available within the current version of Microsoft Excel.

In this competitive era where your colleagues would equally be striving to urge a far better post than you, if you excel yourself in some good certification courses then surely there’s no looking back for you.

This type of certification is all about brushing up your administration, management, and analytical skills which in today’s market is sort of important. To match up with the flexible needs of the clients, it’s important for you to be advanced and for this such training can certainly be helpful.

Some Mind-Blowing Benefits You Get:

There are ample Excel Training Courses that you simply may encounter, but choosing a certification course in Advanced excel possesses its perks for you also as for the corporate. Listed are a few that you simply got to know.

1.There is a superior recognition that you simply get
2.As compared to non-certified professionals, you occupy the highest at the competition
3.Employers will have you ever within the priority for giant important projects
4.If you’re a freelancer, then such advanced training is often an excellent learning experience
5.For those that wish to urge within the management, the world can have a boosting knowledge
6.Administration skills also get brushed up and a replacement range of job opportunities opens
7.There is an honest hike in PayScale soon after you show your skills and certification to your HR

Quick Tip which will Help:

If you’re getting to join a web course to urge such certification then see thereto that the trainer who is going to be taking care of you during this course is very experienced and may provide you with the simplest possible assistance.

Now you’ll boost your knowledge during a spreadsheet, play with new financial

#advanced excel online training #advanced excel online course #advanced excel training #advanced excel course #advanced excel training in noida #advanced excel training in delhi

Kotlin - How to read/write Excel file with Apache POI » grokonez

https://grokonez.com/kotlin/kotlin-read-write-excel-file-apache-poi-example

Kotlin – How to read/write Excel file with Apache POI

In this tutorial, we’re gonna look at Kotlin examples that read and write Excel file using Apache POI.

I. Dependency

<dependency>
	<groupId>org.jetbrains.kotlin</groupId>
	<artifactId>kotlin-stdlib</artifactId>
	<version>1.2.21</version>
</dependency>

<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>3.17</version>
</dependency>

II. Write Data to Excel File

- Simple POJO Customer (id, name, address, age):

package com.javasampleapproach.kotlin.apachecsv

class Customer {
var id: String? = null
var name: String? = null
var address: String? = null
var age: Int = 0

constructor() {}
constructor(id: String?, name: String?, address: String?, age: Int) {
	this.id = id
	this.name = name
	this.address = address
	this.age = age
}

override fun toString(): String {
	return "Customer [id=" + id + ", name=" + name + ", address=" + address + ", age=" + age + "]"
}

}

  • Write to Excel file:

More at:
https://grokonez.com/kotlin/kotlin-read-write-excel-file-apache-poi-example

Kotlin – How to read/write Excel file with Apache POI

#kotlin #apache-poi #excel #read-file #write-file

Java - How to read/write Excel file with Apache POI » grokonez

https://grokonez.com/java/java-read-write-excel-file-apache-poi-example

Java – How to read/write Excel file with Apache POI

In this tutorial, we’re gonna look at examples that read and write Excel file using Apache POI.

I. Dependency

<dependency>
	<groupId>org.apache.poi</groupId>
	<artifactId>poi-ooxml</artifactId>
	<version>3.17</version>
</dependency>

II. Write Data to Excel File

- Simple POJO Customer (id, name, address, age):

package com.javasampleapproach.excelpoi;

public class Customer {
private String id;
private String name;
private String address;
private int age;

public Customer() {
}

public Customer(String id, String name, String address, int age) {
	this.id = id;
	this.name = name;
	this.address = address;
	this.age = age;
}

public String getId() {
	return id;
}

public void setId(String id) {
	this.id = id;
}

public String getName() {
	return name;
}

public void setName(String name) {
	this.name = name;
}

public String getAddress() {
	return address;
}

public void setAddress(String address) {
	this.address = address;
}

public int getAge() {
	return age;
}

public void setAge(int age) {
	this.age = age;
}

@Override
public String toString() {
	return "Customer [id=" + id + ", name=" + name + ", address=" + address + ", age=" + age + "]";
}

}

  • Write to Excel file:

More at:

https://grokonez.com/java/java-read-write-excel-file-apache-poi-example

Java – How to read/write Excel file with Apache POI

#java #excel #apache-poi

Java – Convert Excel File to/from JSON (String/File) – using Apache Poi + Jackson

https://grokonez.com/java/java-convert-excel-file-to-from-json-string-file-using-apache-poi-jackson

Java – Convert Excel File to/from JSON (String/File) – using Apache Poi + Jackson

In the tutorial, Grokonez shows how to convert Excel File to JSON String or JSON File and vice versa with Java language by examples.

Dependencies

<dependency>
	<groupId>org.apache.poi</groupId>
	<artifactId>poi-ooxml</artifactId>
	<version>3.17</version>
</dependency>
<dependency>
	<groupId>com.fasterxml.jackson.core</groupId>
	<artifactId>jackson-databind</artifactId>
	<version>2.8.5</version>
</dependency>

Excel to JSON

Excel File to JSON String

We do 2 steps: – Step 1: Read Excel File into Java List Objects – Step 2: Convert Java List Objects to JSON String

-> Excel File: customers

convert-excel-file-to-from-json-file-string---excel-file

More at:

https://grokonez.com/java/java-convert-excel-file-to-from-json-string-file-using-apache-poi-jackson

Java – Convert Excel File to/from JSON (String/File) – using Apache Poi + Jackson

#java #excel #apache-poi #jackson