Write a Java String program to replace the characters. Write a Java program for Encapsulation. What is the difference between Comparator and Comparable? In between an Interview, the screen was abruptly closed. So, I couldn't focus on Java programs. Please be prepared well and focus on Java Programming. Expert in Java.

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Java String program to replace characters, Encapsulation program, Comparator vs Comparable difference

For Java String program to replace characters, use the replace() method to replace specific characters in a string.
For Encapsulation in Java, use private access modifiers to restrict access to class variables and use public getter and setter methods to access and modify them.
Comparator and Comparable are interfaces used for sorting objects in Java. Comparable is implemented by the class itself to define the natural ordering, while Comparator is a separate class used for custom sorting logic.

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