count occurrences of character in string java 8
String someString = "elephant";
long count = someString.chars().filter(ch -> ch == 'e').count();
assertEquals(2, count);
long count2 = someString.codePoints().filter(ch -> ch == 'e').count();
assertEquals(2, count2);How do you count characters in a string array in Java?
package practical5;
import java.util.Arrays;
public class Part1_9 {
public static void main(String[] args) {
// declaring and populating array
String quoteArray[] = { "\"Continuous", "effort", "not", "strength",
"nor", "intelligence", "is", "the", "key", "to", "unlocking",
"our", "potential.\"\n" };
// for loop to print full array
for (int counter = 0; counter < quoteArray.length; counter++) {
System.out.print(quoteArray[counter] + " ");
}// end of for loop
// Printing array using Enhanced for/ for each loop (Different way to
// print array)
for (String element : quoteArray) {
System.out.print(element + " ");
}// end of enhanced for
// line break
System.out.println();
// printing number of words in array
System.out.println("Number of words in array: " + quoteArray.length);
**// printing total number of letters in array**
for (int counter = 0; counter < quoteArray.length; counter++) {
String letters = new String(quoteArray[counter]);
}
// printing the smallest word
// printing the biggest word
}// end of main
}// end of classCopyright © 2021 Codeinu
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