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Import Org.openjdk.jmh.annotations.output TimeUnit

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Testing Java integer cache

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By import org.openjdk.jmh.annotations.Benchmark, import org.openjdk.jmh.annotations.Mode, import java.util.Array List, Import Org.openjdk.jmh.annotations.output TimeUnit
| DEV Community
In one of my posts, I made 2 + 2 equal to 5 using Java 21. In summary, the Integer class in Java has a cache for values from -128 to 127. I manipulated these values by swapping the number 4 with 5. This made me ponder the importance of this cache and its impact on a program. So, I decided to conduct a test using JMH, which is a micro benchmark API.
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