Posts by eddunic • 17 points

8 posts

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A: removal of related JPA and Hibernate data

Next, you may have had the same problem as me. For the JPA removal method along with Entitymanager, you must always merge the object when you do find, like this: private final static EntityManager…

hibernate
answered 5 years, 5 months ago eddunic 17
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A: Remove method does not work, nor returns error

I went through the same problem, what I did was basically return the object by find, then merge and commit into this. private final static EntityManager manager =…

java database hibernate jpa-2.0
answered 5 years, 5 months ago eddunic 17
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A: Hibernate does not update information

In contrast to the loop, if it is convenient, I think you should do something like below (without looping to return list of objects): public void saveOrUpdate(T obj) { EntityManager manager =…

java mysql sql hibernate jpa
answered 5 years, 5 months ago eddunic 17
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Q: Error using Jplay framework for games!

Hello, I am trying to program in java with the Jplay framework, and I am finding an error that was non-existent on another pc that I had. The error step is found in this video lesson:…

java eclipse 2d
asked 6 years, 7 months ago eddunic 17
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Q: How to prevent the object to exceed the limits of the screen?

I started programming a little game where an object moves across the screen via the arrow keys on the keyboard. The difficulty I found is the fact that the object surpasses the JFrame, that is,…

java swing java2d
asked 6 years, 7 months ago eddunic 17
-5
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835
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Q: Function that converts string to lowercase and compares

struct registro{ /*Estrutura para guardar os dados do usuário*/ char usuario[50]; }atual[1000], *ptr; main() { int v = 0; verific = 0; //posicao e variavel para comp. de string volta_usuario:…

c string function struct
asked 7 years, 1 month ago eddunic 17
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Q: How to turn into a tiny value of a struct?

The next function should turn variables into lowercase and then compare them. I’ve tried converting before, but also bugged. Arithmetic use of pointers together with variables of a struct. Pointer…

c array string pointer struct
asked 7 years, 1 month ago eddunic 17
-2
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Q: Comparison of elements of a vector with "strcmp()"

In the following function I want to compare the elements of a array of 1000, but I can’t find a way to successfully compare them, even using strcmp(). void verifica_conta(int *ptr) { int i;…

c array string comparison
asked 7 years, 1 month ago eddunic 17