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Merge an List of Object and an Object to a new array in Java [closed]

Closed. This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 10 months ago. Improve this question I have List<BigInteger> sample1 = Lists.newArrayList(BIGINTEGER1, BIGINTEGER2,BIGINTEGER3); I have to create new List sample2 with one more value BIGINTEGER4 along with sample1 list: How can

Implementing List interface for CustomList in Java

I need to create a custom list that adds elements in pairs. I copied a similar implementation and adjusted it as needed, but unfortunately, it doesn’t work. And I have this for testing my code so far. The problem is that when I call add method the size of the list increases by 2 as it should, but nothing is

how to union 2 map into one with collection in value [closed]

Closed. This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed last year. Improve this question how to union 2 maps into one with collection in value this way it will override the value Answer

Combine two lists by ID

I have two lists of objects with contents that look like this: List A id = 1, name = “alex”, height = null, weight = 60 id = 2, name = “sara”, height = null, weight = 50 List B id …