Frage im Vorstellungsgespräch bei Digital OnUs

Java questions: 1. What is encapsulation? 2. What is method over loading and method overwriting? 3. Have u used java 8 Strings and lambda ? 4. Difference between array and array list Rest questions : 1. Whats mock services 2. What is Rest Architecture 3. What are rest methods 4. Difference between post and put 5. What is option method 6. Explain different rest response codes 1xx 2xx 4xx 5xx General questions : 1. Jenkins pipeline 2. Git commands Code in java : given 2 different types of array string and int create a function to : 1. Print original array list 2. Remove duplicates and print list 3. Print sorted list of removed duplicates list