Web Reference: If you're swapping numbers and want a concise way to write the code without creating a separate function or using a confusing XOR hack, I find this is much easier to understand and it's also a one liner. Jan 16, 2026 · But as Java has evolved and performance-critical applications demand optimizations, developers often wonder: Are there better ways to swap array elements than the temp variable approach? Jan 23, 2026 · The swap () method of java.util.Collections is used to exchange elements at two specified positions in a list. It works with any class that implements the List interface.
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