measure execution time java code example

Example 1: java execution time

long start = System.currentTimeMillis();
class.method();
long time = System.currentTimeMillis() - start;

Example 2: java time code

final long startTime = System.currentTimeMillis();
for (int i = 0; i < length; i++) {
  // Do something
}
final long endTime = System.currentTimeMillis();

System.out.println("Total execution time: " + (endTime - startTime));

Example 3: java measure execution time

Instant start = Instant.now();
Thread.sleep(63553);
Instant end = Instant.now();
System.out.println(Duration.between(start, end)); // prints PT1M3.553S

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Python Example

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