Question

I am trying to create a program called Count.java that contains a single method called compute with a string parameter called value.

The method should count the number of newlines, words (any sequence of characters separated with whitespace), and characters in a given string and return an array of the three integer values.

Use a Scanner to count the number of words in a string. The Scanner.next() method returns the next word, ignoring whitespace.

Answer 1

Answer:

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import java.util.*;
public class Count
{
public static int[] compute(String value){
int charCount=0;
int lineCount=1;
int wordsCount=0;
for (int i=0;i<value.length();i++)
{
//if we found slash n we count the lines
if(value.charAt(i)=='\n')
lineCount++;
}
Scanner sc=new Scanner(value);
//scanning the tokens from given string
while(sc.hasNext())
{
wordsCount++;
sc.next();
}
//calculating the char count without spaces and \n values
charCount=value.length()-lineCount-wordsCount;
int arr[]={charCount,lineCount,wordsCount};
return arr;
  
  
}
   public static void main(String[] args) {
  
   int arr[]=compute("hello world \n welcome to my world");
   System.out.println("charcount: "+arr[0]);
       System.out.println("linecount: "+arr[1]);
           System.out.println("wordscount: "+arr[2]);
   }
}