Enter Name and Sort it (Problem_8) Form School

 package School;

import java.util.Scanner;

public class Problem_8 {
    public static void main(String[] args) {
        String Data[]=new String[20];
        Scanner in=new Scanner(System.in);
        System.out.println("Enter number of names you want to enter: ");
        int input=in.nextInt();
        if(input>=3&&input<=20) {
            String temp;
            System.out.println("Enter name");
            for (int i = 0; i < input; i++) {
                Data[i] = in.next();
            }

            for(int i=0;i<input;i++){

                for(int j=0;j<(input-1);j++)
                {
                    if(Data[j].compareToIgnoreCase(Data[j+1])>0)
                    {
                        temp=Data[j];
                        Data[j]=Data[j+1];
                        Data[j+1]=temp;
                    }
                }
            }
            for (int i=0;i<input;i++)
            {
                System.out.println(Data[i]);
            }
        }

        else {
            System.out.println("Array out of Range!!!");
        }

        }

    }