Java Core

By blog url: /preparation/java-fundamentals/java-core/ Write a tutorial on 'String vs StringBuilder'

url: /preparation/java-fundamentals/java-core/equals()-vs-== write a tutorial on equals() vs ==

url: /preparation/java-fundamentals/java-core/hashcode()-contract write a tutorial on hashCode() contract

url: /preparation/java-fundamentals/java-core/optional-java Write a tutorial on 'Optional in java'

Url: /preparation/java-fundamentals/java-core/functional-interfaces Write an tutorial on Functional interfaces in java

url: /preparation/java-fundamentals/java-core/records Write a tutorial on Records in java

url: /preparation/java-fundamentals/java-core/sealed-classes write a tutorial on Sealed classes in java