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I have a String[] that contains:
Java
[g, g, g, e, e, e, g, e, g, g]

and I'd like to convert it to an int[] of 0 and 1:
Java
[0, 0, 0, 1, 1, 1, 0, 1, 0, 0]


What I have tried:

I tried converting it to a radix base36 system but I'm not sure how to do it for 0 and 1.
Java
int size = stringArray.length;
int [] arr = new int [size];
  for(int i=0; i<size; i++) {
	arr[i] =  Integer.parseInt(stringArray[i], 36) ;
}
Posted
Updated 22-Oct-20 0:16am
v2
Comments
Sandeep Mewara 21-Oct-20 15:51pm    
What's the logic of alphabet to 1 or 0 here? What would happen if I give you any other letter here?
ynjay 21-Oct-20 16:24pm    
Basically I need a dataframe that uses labels of 0 and 1, which is based on an array it doesn't specifically matter which letters are used but must be only 2 letters and one has to be 0 and the other 1.
Gerry Schmitz 21-Oct-20 16:34pm    
Sounds like you're asking what "labels" to use ... How about Eggs and Spam.
ynjay 21-Oct-20 16:53pm    
I need an array of 0s and 1s

Try
Java
public class MyTest
{ 
  public static void main( String args[] )
  { 
    String [] sa = { "g", "g", "g", "e", "e", "e", "g", "e", "g", "g" };
    
    int [] ia = to_int(sa);
    for ( int i=0; i< ia.length; ++i)
      System.out.printf("%d, ", ia[i]);
    System.out.println();
  }

  static int [] to_int(String sa[])
  {
    int len = sa.length;
    int [] result = new int[len];

    for(int i = 0; i < len; ++i)
    {
      result[i] = sa[i].equals("e") ? 1 : 0;
    }
    return result;
  }
}
 
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v2
Comments
ynjay 22-Oct-20 9:33am    
Thanks so much!
CPallini 22-Oct-20 9:37am    
You are welcome.
Something like:
Python
g = 'g'
e = 'e'
letters = [g, g, g, e, e, e, g, e, g, g]
bools = [x==g for x in letters]
print(bools)

While that uses True and False as results, it should not be too difficult to get what you want.

Oops.
 
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v2
Comments
CPallini 22-Oct-20 5:17am    
Hey Richard, I do know you like Python so much, but... It's Java!
Richard MacCutchan 22-Oct-20 5:33am    
Doh!

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