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Editorial Team
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Asked: 2026-05-18T00:08:49+00:00

int totalRecs = getTotalRecs(); // returns ’13’ int MAX_RECS_PER_LOOKUP = 10; Random rand =

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int totalRecs = getTotalRecs(); // returns '13'
int MAX_RECS_PER_LOOKUP = 10;
Random rand = new Random();
int start = (totalRecs > Utl.MAX_RECS_PER_LOOKUP) ? rand.nextInt(totalRecs-Utl.MAX_RECS_PER_LOOKUP) : 0;
results = this.getNewRecs(filter, start, start+1);

I’m using this random number logic to retrieve records from the database based on their table row offset (start up to start+1).

But for some reason it keeps repeating the same numbers: start value of 0 and start value of 3.

I tried seeding the Random object but it made no difference:

long seed = System.currentTimeMillis();
rand.setSeed(seed);
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1 Answer

  1. Editorial Team

    The rand.nextInt(n) method returns a value between 0 (inclusive) and n (exclusive).

    In your code, if totalRecs is 13, and Utl.MAX_RECS_PER_LOOKUP is 10 (I am assuming this one based on the MAX_RECS_PER_LOOKUP value in your code snippet, but I may be wrong), then this code:

    rand.nextInt(totalRecs-Utl.MAX_RECS_PER_LOOKUP);

    should return a random number between 0 and 2.

    I am not sure if this is what you actually want?

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