import java.util.Arrays;
public class Main {
public static void main(String[] args) {
double[] d1 = new double[] { 3.1, 2.1, 5.1, 4.1, 1.1 };
for (double d: d1){
System.out.print(" " +d);
}
Arrays.sort(d1);
for (double d: d1){
System.out.print(" " +d);
}
double[] d2 = new double[] { 5, 2, 3, 1, 4 };
Arrays.sort(d2, 1, 4);
for (double d: d2){
System.out.print(" " +d);
}
}
}
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