Vector and ArrayList Differences Java

Short Java Interview Question And Answer ?

1. Difference between Private , Public and Protected ?

Private - Not accessible outside object scope. Public - Accessible outside object scope. Protected - Becomes private when inherited.

2. What is role of Synchronization in Java ?

Managing exclusive access of the code block to single thread at a time to maintain its integrity.

3. What is Default Access ?

Accessible only by the objects in the same package.

4. Difference between Vector and ArrayList ?

Vectors are synchronized whereas Array lists are not synchronized.

5. Difference between class and objects ?

Class is a template using which objects are created in memory or instances of a class.

Vector and ArrayList Differences Java
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