Java - How do I output the statement exactly as it shows? How can I get rid of the commas at the end? Don't get rid of each comma, just the ones at the end of the output. Write a program that lists all ways people can line up for a photo (all permutations of a list of Strings). The program will read a list of oneword names (until -1), and use a recursive method to create and output all possible orderings of those names separated by a comma, oneordering per line.When the input is:Julia Lucas Mia -1hen the output is (must match the below ordering):Julia, Lucas, MiaJulia, Mia, LucasLucas, Julia, MiaLucas, Mia, JuliaMia, Julia, Lucas.Mia, Lucas, Julia1 import java.util.Scanner;2 import java.util.ArrayList;NM4 in 610034 public class PhotoLineups {578910#2#99998=22**222*8========779#!11121314151617181920212324252630313334353637}32 public static void main(String[] args) {383940414243public static void printAllPermutations (ArrayList permList, ArrayList nameList) {if(nameList.isEmpty()) {44for(int i = 0; i newPerm = new ArrayList (permList);newPerm.add(nameList.get(i));ArrayList newNameList = new ArrayList(nameList);newNameList.remove(i);printAllPermutations (newPerm, newNameList);}}Scanner scnr = new Scanner(System.in);ArrayList nameList = new ArrayList();ArrayList permList = new ArrayList();string name;while(true) {name = scnr.next();if(name.equals("-1")) break;nameList.add(name);}printAllPermutations (permList, nameList);

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Java - How do I output the statement exactly as it shows? How can I get rid of the commas at the end? Don't get rid of each comma, just the ones at the end of the output.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

Java - How do I output the statement exactly as it shows? How can I get rid of the commas at the end? Don't get rid of each comma, just the ones at the end of the output.

Write a program that lists all ways people can line up for a photo (all permutations of a list of Strings). The program will read a list of one
word names (until -1), and use a recursive method to create and output all possible orderings of those names separated by a comma, one
ordering per line.
When the input is:
Julia Lucas Mia -1
hen the output is (must match the below ordering):
Julia, Lucas, Mia
Julia, Mia, Lucas
Lucas, Julia, Mia
Lucas, Mia, Julia
Mia, Julia, Lucas.
Mia, Lucas, Julia
1 import java.util.Scanner;
2 import java.util.ArrayList;
NM4 in 6100
3
4 public class PhotoLineups {
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10
#2#99998=22**222*8========779#!
11
12
13
14
15
16
17
18
19
20
21
23
24
25
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30
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}
32 public static void main(String[] args) {
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public static void printAllPermutations (ArrayList<String> permList, ArrayList<String> nameList) {
if(nameList.isEmpty()) {
44
for(int i = 0; i <permList.size(); i++) {
System.out.print(permList.get(i) +", ");
}
System.out.println();
}else{
for(int i = 0; i <nameList.size(); ++i) {
ArrayList<String> newPerm = new ArrayList<String> (permList);
newPerm.add(nameList.get(i));
ArrayList<String> newNameList = new ArrayList<String>(nameList);
newNameList.remove(i);
printAllPermutations (newPerm, newNameList);
}
}
Scanner scnr = new Scanner(System.in);
ArrayList<String> nameList = new ArrayList<String>();
ArrayList<String> permList = new ArrayList<String>();
string name;
while(true) {
name = scnr.next();
if(name.equals("-1")) break;
nameList.add(name);
}
printAllPermutations (permList, nameList);

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