How to print out a random String from an array in Java

Question

Hi I have been trying to make my first game for a while but have run into difficulty. I want to pull a randomized String from an array of Strings and then print it out but I have errors in my code. I have looked all over but I can't find the solution. Here is the code: (I have already declared the currentRoom varible)

      int currentRoom;
String [][] rooms = {{"Start", "Treasure Room1"}, {"Goblin Home1", "Spider Nest1"}};

Random rand = new Random()
currentRoom = rooms [rand.nextInt( rooms.length)];


System.out.println(currentRoom);

I have an error on my currentRoom variable in line 6 and I think that is messing everything up, but I don't know so the mistake could be anywhere.

Any help is appreciated:)

prashantsunkari · Accepted Answer · 2013-04-15 01:51:19Z

2

Two things you have to change:

currentRoom should be String Array

Printing string array should be done using Arrays.toString

         String[] currentRoom;
     String [][] rooms = {{"Start", "Treasure Room1"}, {"Goblin Home1", "Spider Nest1"}};

     Random rand = new Random();

     currentRoom = rooms [rand.nextInt(rooms.length)];


     System.out.println(Arrays.toString(currentRoom));

Sample Output

[Goblin Home1, Spider Nest1]

Hope this helps!

answered Apr 15, 2013 at 1:51

prashantsunkari

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1 Comment

user2280906 Over a year ago

Because later it is going to be more complex

Sachin Joseph · Accepted Answer · 2013-04-15 01:56:49Z

1

Why do you need a 2D array of strings? I think you can manage with a 1D array instead.

String currentRoom;
String[] rooms = {"Start", "Treasure Room1", "Goblin Home1", "Spider Nest1"};
Random rand = new Random();
currentRoom = rooms [rand.nextInt( rooms.length)];

System.out.println(currentRoom);

answered Apr 15, 2013 at 1:56

Sachin Joseph

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1 Comment

user2280906 Over a year ago

Because later it is going to get more complex

Fergus · Accepted Answer · 2013-04-15 01:49:19Z

0

String currentRoom;
String [][] rooms = {{"Start", "Treasure Room1"}, {"Goblin Home1", "Spider Nest1"}};

Random rand = new Random();
int rnd = rand.nextInt( rooms.length);
currentRoom = rooms [rnd][0] + ":"+ rooms [rnd][1];

System.out.println(currentRoom);

answered Apr 15, 2013 at 1:49

Fergus

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