Category: Java Freshers Interview Questions

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Java frequently asked interview questions

What is the difference between an interface and an abstract class in Java? In Java, an interface and an abstract class are both used to define a contract for classes…

Difference between a String and a StringBuffer in Java

In Java, a String is an immutable object that represents a sequence of characters. It means once a String is created, its value cannot be changed, any operation that appears…

Java 8 Streams Lazy Evaluation

In Java 8, streams use a technique called “lazy evaluation” to process data. Lazy evaluation means that a stream operation is not executed until it is absolutely necessary. This can…