What is the parent class of all classes in java?

More Questions

• What is the extension of compiled java classes?
• How to use xjc to generate java classes?
• Why we use abstract class in java?
• What is instance of a class in java?
• What is the use of abstract class in java?
• What is instance of class in java?
• What is class in java with example?
• What is optional class in java 8?
• How to create custom immutable class in java?
• How to create optional class in java?