I need help getting the following code to compile:
import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;
public class ScrambleMain {
public static void main(String[] args) {
File file = new File("paragraph.txt");
String scrambledString = "";
try {
Scanner sc = new Scanner(file);
while (sc.hasNextLine()) {
String line = sc.nextLine();
String lineArr[] = line.split(" ");
System.out.println("input string :" + line);
for (int i = 0; i < lineArr.length; i++)
{
String str = lineArr[i];
if (str.length() > 3) {
scrambledString += scramble(str) + " ";
} else {
scrambledString += str + " ";
}
}
}
System.out.println("scrambledString : " + scrambledString);
sc.close();
} catch (FileNotFoundException e) {

e.printStackTrace();
}
}
public static String scramble(String str) {
StringBuilder newStringBuilder = new StringBuilder();
char firstLetter = str.charAt(0);
char lastLetter = str.charAt(str.length() - 1);
StringBuilder stringBuilder = new StringBuilder(str.substring(1,
str.length() - 1));
while (stringBuilder.length() > 0) {
int n = (int) (Math.random() * stringBuilder.length());
newStringBuilder.append(stringBuilder.charAt(n));
stringBuilder.deleteCharAt(n);
}
return firstLetter + newStringBuilder.toString() + lastLetter;
}
}
Solution
The code works fine. Just give a proper input file with some words in it.
The following is the result of running the program with the input file contains a word
"computer" :
output
----------------
input string :computer
scrambledString : cmpeuotr