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Computer Programming

144 learners

COBOL File Handling

In this course, learn how to handle files in COBOL. This is crucial for banking applications that need to store and retrieve customer and account information. You'll start with basic file operations and gradually move to more complex file handling.

COBOL

See path

5 lessons

25 practices

2 hours

Computer Science Fundamentals

Course details

Creating and Writing to a Sequential File

Preview

Change Customer Details in COBOL

Fix COBOL Sequential File Bug

Change Customer Details in COBOL

Complete the Superhero File Code

Writing a Superhero to a File

Previous Course

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Faith Yim

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Abbey Helterbran

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Jonathan Miller

Senior Machine Learning Engineer

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I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

From our community

Hear what our customers have to say about CodeSignal Learn

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

I love that it's personalized. When I'm stuck, I don't have to hope my Google searches come out successful. The AI mentor Cosmo knows exactly what I need.

Faith Yim

Software Engineer

+14

It's an amazing product and exceeded my expectations, helping me prepare for my job interviews. Hands-on learning requires you to actually know what you are doing.

Alex Bush

Full Stack Engineer

I'm really impressed by the AI tutor Cosmo's feedback about my code. It's honestly kind of insane to me that it's so targeted and specific.

Abbey Helterbran

Tech consultant

I tried Leetcode but it was too disorganized. CodeSignal covers all the topics I'm interested in and is way more structured.

Jonathan Miller

Senior Machine Learning Engineer

+12

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11