Thread: Count occurrence of a string in an array list

How to count occurrence of a string in a string array list. I have 800,000 strings in string list..

Hi,

Post your full code what you tried.

Happy to help you

thanks,

Now I have one array of strings which has 60,000 unique strings. I also have one string abcd which has comma separated values of substrings. I want to find the occurrences of those unique strings in string abcd.

I have tried like this..


public void getscore () throws FileNotFoundException, IOException{

byte[] buffer = new byte[1028];
BufferedInputStream bufferedInput = new BufferedInputStream(new FileInputStream("F:/Major Project/DataSets/Bibsonomy/2008/modified/modified/titledata3"));

int bytesRead = 0;
while ((bytesRead = bufferedInput.read(buffer)) != -1) {

String chunk = new String(buffer, 0, bytesRead);
String a2[] = chunk.split(",");
for(int i=0;i<a2.length;i++)
abc.add(a2[i]);

String chunk2 = new String(buffer,0,bytesRead);
String a3[] = chunk.split(",");
for(int i=0;i<a3.length;i++){
xyz.add(a3[i]);
}
}

}

public void findcount (){

//abc.toArray(a5);
int n1;
int c = 0;
int i =0;
n1 = abc.size();
// System.out.println(n1);
String abcd = abc.toString();
xyz.toArray(a4);

findStr = a4[1];
System.out.println(a4[1]);

while(!abcd.isEmpty()){
if(a4[1].equalsIgnoreCase(abcd));
{
c++;
}
// i++;
}
System.out.println("Count is " +c);

}


// Thanks for reply..

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