Reading from Array

Question

Hi all,
I have a piece of code a need a little help with. I created a method that is supposed to read an array and look for a .,?, or !, which denotes that this is the end of the sentence. I am trying to invoke the method to print out whether or not the end of the sentence has been found, but i can not get the method to work with the array. I keep getting incompatible types errors. Any input would be greaty appreciated.
import java.io.*;
import java.util.*;
public class Linetasks{
public static boolean isEndOfSentence(char c) {
if ((c == '.') || (c == '?') || (c == '!')) {
return true;
else {
return false;
public static long countCharacters(String line) {
long numCharacters = 0;
int index = 0;
while (index < line.length()) {
char c = line.charAt(index++);
if (!Character.isWhitespace(c)) {
          numCharacters++;
return numCharacters;
public static void main(String args[]){
String[] s = {
"This line is first.",
"And this one come next.",
"Lastly, we have this one!",
"Are there any more lines"};
char ch = '?';
if (isEndOfSentence(ch)) {
System.out.println("The end of sentence is found.");
else {
System.out.println("The end of the sentence is not found.");

Answer 1

hi,
your modified code..
import java.io.*;
import java.util.*;
public class Linetasks{
public static boolean isEndOfSentence(char c) {
if ((c == '.') || (c == '?') || (c == '!')) {
return true;
else {
return false;
public static long countCharacters(String line) {
long numCharacters = 0;
int index = 0;
while (index < line.length()) {
char c = line.charAt(index++);
if (!Character.isWhitespace(c)) {
numCharacters++;
return numCharacters;
public static void main(String args[]){
String[] s = {
"This line is first.",
"And this one come next.",
"Lastly, we have this one!",
"Are there any more lines"};
// this is for array
//modified by vijay.dr, india
for (int i=0; i<s.length; i++ )
char ch[] = s.substring(s[i].length()-1).toCharArray();
if (isEndOfSentence(ch[0])) {
System.out.println("The end of sentence is found.");
else {
System.out.println("The end of the sentence is not found.");
} try to understand my modification by yourself