Programming (EN)

Programming (EN)

[Java] Java methods with return value

2020/12/30  

When Method is written using return in Java, data_type should be matched in 〇〇 area as below: public ...

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Programming (EN) 未分類

How to check errors when 'xxx' undeclared

2020/12/21  

I often get error and error often says 'xxx' undeclared. So I just organized my though what I should ...

Programming (EN)

[Java] How to access data using array, ArrayList, and map

2020/12/30  

I'm sometimes confused how to access data when I use array, arraylist, and map at the same time. So ...

Programming (EN) 未分類

What's library and package?

2020/12/30  

I just wanted to organize my thought about relation between library and package so that I can be cle ...

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Programming (EN)

What's advantages of arguments?

2020/12/30  

When I learned arguments, I somewhat understand about concept but didn't understand "Why should I us ...

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Programming (EN)

What's advantages of declaring variables?

2020/12/15  

When I learn Java, I was wondering why variables should be declared. But when I search about this, I ...

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Programming (EN)

What is Data types?

2020/12/30  

Purpose? I'm currently learning about JAVA and I'm getting confused about data types, so I organize ...