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43 | import java.util.ArrayList;
import java.util.Arrays;
import java.util.Random;
public class sortvsparllelsort {
public static void main(String[] args) {
Random random=new Random();
System.out.println("Comparison between Sort and Parallel Sort");
ArrayList<Integer> arraylist=new ArrayList<>();
for (long i=1;i<10000000L;i++)
{arraylist.add(random.nextInt(900));
}
System.out.println("ArrayList has been initialised");
Integer a[]=new Integer[arraylist.size()];
Integer b[]=new Integer[arraylist.size()];
System.out.println("Both normal arrays are initialised");
a= arraylist.toArray(a);
b=Arrays.copyOf(a,a.length);
System.out.println("comparison starting ");
double start,end,sorttime,parallelsorttime;
System.out.print("Time taken by Sort method=");
start=System.nanoTime();
Arrays.sort(a);
end=System.nanoTime();
sorttime=(end-start)/(Math.pow(10,9));
System.out.println( sorttime +" Seconds");
System.out.print("Time taken by parallel sort =");
start=System.nanoTime();
Arrays.parallelSort(b);
end=System.nanoTime();
parallelsorttime=(end-start)/(Math.pow(10,9) );
System.out.println(parallelsorttime +" Seconds");
String verdict="";
verdict=sorttime>parallelsorttime?"ParallelSort ":"Sort ";
verdict+=" IS BETTER than ";
verdict+=sorttime>parallelsorttime?"Sort ":"ParallelSort";
System.out.println(verdict.trim());
}
}
|
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