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Lucky


Last seen: 2 years ago |  Active since 2022

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Hi all, I am Lucky and I joined this community to learn new things about programming. I know C, HTML, and CSS and am currently learning Java and Python. I am very passionate about programming, this is the reason I gave a challenge myself to learn Java and Python I hope this community will help me to grow in my journey. Thanks!

Programming Languages:
C

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How to use a jagged array or a pointer array to construct the Rootish Array Stack Data Structure in Java.
Basically, I'd want to know how to retrieve an array that includes another array and decrease or enlarge it. For example, Aa,b,c...

2 years ago | 0 answers | 0

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Java equals() selection
In Java, if I try to do.equals() on a null string, a null pointer error is issued. I'm wondering whether I can perform the follo...

2 years ago | 0 answers | 0

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Minimum number of candidate keys for a relation?
I want to know if a primary key and a candidate key are required for a database relation or table. Is it feasible to create a co...

2 years ago | 1 answer | 0

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Java heap space out of memory problem
List<String[]> csvBody = reader.readAll();. This consumes a lot of info if you're reading a big file. Instead, read each row i...

2 years ago | 0