import java.util.Arrays; public class Main { public static void main(String[] args) { float[] f1 = new float[] { 3.1f, 2.1f, 5.1f, 4.1f, 1.1f }; for (float f: f1){ System.out.print(" " + f); } Arrays.sort(f1); for (float f: f1){ System.out.print(" " + f); } float[] f2 = new float[] { 5.1f, 2.1f, 3.1f, 1.1f, 4.1f }; Arrays.sort(f2, 1, 4); for (float f: f2){ System.out.print(" " + f); } } }