Technologies_fixer

 One of the features that was introduced in Java 16 is Pattern Matching for instanceof and was finalized in Java 21. 1 - Pattern Matching for instanceof: In the old way, when we needed to check an object's type, we required a conditional check followed by an explicit, manual cast. Pattern matching combines these two steps into an atomic operation. Example: // Traditional Java (Boilerplate-heavy)   if (obj instanceof String) {       String s = ( String ) obj; // Manual cast required        System.out.println( s .toUpperCase());  }  // Modern Java (Pattern Matching)   if (obj instanceof String s) {         System.out.println(s.toUpperCase());       // 's' is automatically cast and ready   } Flow Scoping: The binding of variable(s) uses flow scoping. It is only in scope where the compiler can deduce that the type check has succeeded. if(obj instanceof String s &&...