Java 21: Record patterns deconstruct records

Record patterns bind a record's components directly in instanceof or switch.

Code

record Point(int x, int y) {}
Object o = new Point(3, 4);
if (o instanceof Point(int x, int y)) {
    System.out.println("x+y = " + (x + y));
}

Output

x+y = 7

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Published 2026-07-26