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Home»Programming»What is Vector Java?
Programming

What is Vector Java?

siliconvlsiBy siliconvlsiJuly 28, 2023Updated:July 27, 2024No Comments2 Mins Read
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What is Vector Java?

I think a Vector in Java is a data structure used to store various elements. You can store all primitive types like int and float, as well as Objects. Vectors are dynamic, so they grow or shrink as needed. I found that the Vector class is in the java.util package.

We use Vectors in Java when we need a dynamic collection of elements. You can use all the List interface methods with it. The Vector class extends the AbstractList class. However, I’ve noticed that Vectors can throw ConcurrentModificationException when accessed concurrently during modification.

A Vector in Java starts with a specific capacity to hold elements. This capacity is flexible and can change as elements are added or removed. I usually define the initial capacity when I create a Vector.

You should know that Vectors in Java are synchronized, meaning only one thread can access it at a time. This makes them thread-safe but also slower in performance because they lock a thread. I prefer using ArrayLists when thread safety isn’t a concern.

I’ve read that Vectors are part of the java.util package and are like ArrayLists but with synchronization. You might want to use Vectors for thread-safe operations. If you don’t need thread safety, you can use ArrayLists instead, which are faster.

  • The vector is synchronized.
  • Vector is a dynamic array like ArrayList.
  • Vector is similar to ArrayList used for random access.
  • vector and Hashtable are the only collections since 1.0.
  • vector size increases or decreases when elements are added and removed.
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