Manu Joy questions

• collect a synchronized arraylist from streams in java 8
• Find the hierarchy
• Getting only required objects from a list using Java 8 Streams
• Minus operation in java 8 for subtracting Lists
• Handling null pointers and throwing exceptions in streams
• Dealing with a null attribute using java 8 streams and sorting using lambda expressions
• Convert List of List into list in java
• Sorting using Comparator Interface and java 8 Streams

Manu Joy answers