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Tutorials under 'Legacy Code Refactoring'

Migrating Legacy Code to Modern Java Collections

Learn how to refactor old Java code using outdated collections into modern, efficient, and safer collections with Java 8–21 features and best practices

HashMap Internals Java 21 Legacy Code Refactoring Collections Migration Immutable Collections Performance Tuning Concurrent Collections Java 8 Java Best Practices Streams API List Vs Set Functional Programming Java Collections ArrayList Resize TreeMap Vs HashMap