Geek Answers Handbook

When should I use Java-8 threads?

Recently, I began to study Java-8 threads. I look at a huge code base and try to figure out where I can use threads to improve performance.

From what I understood, replacing each loop with threads does not make sense, since threads are not always better than loops. Below are a few examples that I have understood as useful:

  • If only some elements in the collection lead to more calculations.
while(iterate over a collection) 
{  
    if(certain condition is met) {  //do some computation  } 
    else { //do nothing       }
}

Using threads here avoids loading unnecessary collection members here. (faster and more efficient in terms of memory)

  1. when we want to collect the results in a collection where the resulting order does not matter and each iteration is independent (no state). If the computation is CPU intensive and we use parallel threads here, I think it will be more efficient.

Please correct me if I am wrong. I am looking for more such cases ...

+4
source share

More articles:


All Articles