FONForum

Upisivanje ocena (iz bilo kog roka) u indeks: utorak, 25.09.2007,
09:00-09:45, soba 305.

pustis kroz for petlju do kraja.
u petlji,ako ti je ( i mod 3=0)
ispisuj ga; u suprotnom return

/**
* Ucitati sadrzaj fajla ’sample text.txt’.
* U ucitanom tekstu pronaci sve cele brojeve i od njih kreirati niz objekata klase Integer.
* Prikazati elemente niza na ekranu kao i najveci i najmanji element niza.
*/

import java.io.BufferedReader;
import java.io.FileReader;
import java.util.Arrays;

public class BrojeviUTekstu {

//@SuppressWarnings("unchecked")
public static void main(String[] args) {
try {
BufferedReader br = new BufferedReader(new FileReader("sample text.txt");
String text = br.readLine();
String[] words = text.split(" ");
Integer[] integers = new Integer[countIntegers(words)];

int counter = 0;
for (int i = 0; i < words.length; i++) {
String word = cleanWord(words[i]);
if (isInteger(word)) {
integers[counter] = Integer.parseInt(word);
counter++;
}
}

Arrays.sort(integers);
printIntegers(integers);

} catch (Exception e) {
e.printStackTrace();
}
}

public static boolean isInteger(String str) {
for (int i = 0; i < str.length(); i++) {
if (!Character.isDigit(str.charAt(i))) {
return false;
}
}
return true;
}

public static int countIntegers(String[] words) {
int value = 0;
for (int i = 0; i < words.length; i++) {
if (isInteger(cleanWord(words[i]))) {
value++;
}
}
return value;
}

public static String cleanWord(String word) {
if (word.startsWith("(")) {
word = word.substring(1, word.length());
}
if (word.endsWith(".") || word.endsWith(",")) {
word = word.substring(0, word.length()-1);
}
if (word.endsWith(")")) {
word = word.substring(0, word.length()-1);
}
return word;
}

public static void printIntegers(Integer[] integers) {
System.out.println("Elementi niza su: ");
for (int i = 0; i < integers.length; i++) {
System.out.println(integers[i]);
}
System.out.println("Najveci element je: " + integers[integers.length-1]);
System.out.println("Najmanji element je: " + integers[0]);
}

}

Bice, ne brinite za to.