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); } } }