Need of functional interface in java 8

- Why we need functional interface in java 8
- Types of functional interface in java 8
- List of functional interface in java 8
- Functional interface in java 8
- Example of functional interface in java 8
- Advantages of functional interface in java 8
- Example of functional interface in java 8 mcq
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- Purpose of functional interface in java 8
- Functional interface in java 8 real time example
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- Functional interface in java 8 w3schools
- Functional interface in java 8 medium
- Why do we need functional interface in java 8