1. Implement class comparator wich will compare records according your sort preferencies,
like this:
public class record_Comparator implements Comparator{
public int compare(Object emp1, Object emp2){
// here is your code for return -1if 'before' or 0 if equal or 1if 'after'
int stepId_1 = ((record)emp1).get_someValue();
int stepId_2 = ((record)emp2).get_someValue();
if(stepId_1 > stepId_2)
return 1;
else if(stepId_1 < stepId_2)
return -1;
else
return 0;
}
}
than call method sort() with your collection of records,
like this:
Collections.sort(record_collection, new record_Comparator());
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