WELCOME TO THE SIDES
Ini adalah tugas kuliah algo lanjut , tugas dengan waktu
terparah yang pernah ada. Soal diberikan pukul 9 malam selesai jam 6 pagi. Ini
dia soalnya 1 :
Write a program that reads a file and displays
the words of that file as a list.
– Then display them in reverse order.
– Then display them with all plurals (ending in "s") capitalized.
– Then display them with all plural words removed.
the words of that file as a list.
– Then display them in reverse order.
– Then display them with all plurals (ending in "s") capitalized.
– Then display them with all plural words removed.
– display with all vocal words removed
Dan ini adalah source codenya :
import java.util.*;
import java.io.*;
public class tugas2 {
public static void main(String[] args) throws FileNotFoundException {
Scanner input = new Scanner(new File("c:\\list.txt"));
input = new Scanner(new File("c:\\list.txt"));
System.out.println("Display All Word");
ArrayList<String> allWords = new ArrayList<String>();
while (input.hasNext()) {
String word = input.next();
allWords.add(word);
}System.out.println(allWords);
System.out.println("Display them with plural (ending in 's')
capitalized");
ArrayList<String> CapEndS = new ArrayList<String>();
for (int i = 0; i < allWords.size(); i++){
String word = allWords.get(i);
if (word.endsWith("s")) {
CapEndS.add(allWords.get(i).toUpperCase());
}else{CapEndS.add(allWords.get(i));
}
}System.out.println(CapEndS);
System.out.println("Display them in reverse order");
ArrayList<String> ReverseWords = new ArrayList<String>();
for (int i = allWords.size() - 1; i >= 0; i--){
ReverseWords.add(allWords.get(i));
}System.out.println(ReverseWords);
System.out.println("Display them eith plural words
removed)");
for (int i = 0; i < allWords.size(); i++) {
String word = allWords.get(i);
if (word.endsWith("s")) {
allWords.remove(i);
i--;
}
}System.out.println(allWords);
System.out.println("Display vokal words removed");
ArrayList<String> RemovedWords = new ArrayList<String>();
for (int i = 0; i < allWords.size(); i++) {
String word = allWords.get(i);
RemovedWords.add(word.replaceAll("[a,i,u,e,o]", ""));
}System.out.println(RemovedWords);
}}
Soal 2 :
Write a program that reads a file full of numbers
anddisplays all the numbers as a list, then:
Prints the average of the numbers.
Prints the highest and lowest number.
Filters out all of the even numbers (ones divisible by
2).
import java.io.File;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Scanner;
public class Tugas {
public static void main(String[] args) throws FileNotFoundException {
ArrayList<Integer> numbers = new ArrayList<Integer>();
Scanner input = new Scanner(new File("D:\\number.txt"));
while (input.hasNextInt()) {
int n = input.nextInt();
numbers.add(n);
}
System.out.println("Number : " + numbers);
System.out.println("Avg:" + String.valueOf(avg(numbers)));
//show high lowest
Collections.sort(numbers);
System.out.println("Sort lowest :
" + String.valueOf(numbers.get(0)));
Collections.reverse(numbers);
System.out.println("Sort highst :
" + String.valueOf(numbers.get(0)));
filterEvens(numbers);
System.out.println("sisa bagi: " + numbers);
}
//show the average values from the given list
public static Double avg(ArrayList<Integer> list) {
int sum = 0;
for (int i = list.size() - 1; i >= 0; i--) {
sum += list.get(i);
}
return (double) (sum / (list.size()));
}
// Removes all elements with even values from the given list.
public static void filterEvens(ArrayList<Integer> list) {
for (int i = list.size() - 1; i >= 0; i--) {
int n = list.get(i);
if (n % 2 == 0) {
list.remove(i);
}
}
}
}
Soal 3 :
Write a method reverse that reverses the order of
the elements in an ArrayList of
strings.
Write a method capitalizePlurals that accepts
an ArrayList of
strings and replaces every word ending with an
"s" with its uppercased version.
Write a method removePlurals that accepts
an ArrayList of
strings and removes every word in the list ending with an "s", case-insensitively.
import java.util.*;
import java.io.*;
public class arraylistfuck {
public static void main(String[] args) throws FileNotFoundException {
Scanner input = new Scanner(new File("d:\\list.txt"));
input = new Scanner(new File("d:\\list.txt"));
System.out.println("Display All
Word");
ArrayList<String> allWords = new ArrayList<String>();
while (input.hasNext()) {
String word = input.next();
allWords.add(word);
}
Collections.reverse(allWords);
System.out.println(allWords);
System.out.println("Display them with
plural (ending in 's')capitalized");
ArrayList<String> CapEndS = new ArrayList<String>();
for (int i = 0; i < allWords.size(); i++) {
String word = allWords.get(i);
if (word.endsWith("s")) {
String sString = allWords.get(i);
sString = Character.toString(sString.charAt(0)).toUpperCase() + sString.substring(1);
CapEndS.add(sString);
//CapEndS.add(allWords.get(i).toUpperCase(allWords.get(0).charAt(0)));
} else {
CapEndS.add(allWords.get(i));
}
}
System.out.println(CapEndS);
System.out.println("Display them in
reverse order");
ArrayList<String> ReverseWords = new ArrayList<String>();
for (int i = allWords.size() - 1; i >= 0; i--) {
ReverseWords.add(allWords.get(i));
}
System.out.println(ReverseWords);
System.out.println("Display them eith
plural words removed)");
for (int i = 0; i < allWords.size(); i++) {
String word = allWords.get(i);
if (word.endsWith("s")) {
allWords.set(i,allWords.get(i).substring(0,allWords.get(i).length()-1));
}
}
System.out.println(allWords);
System.out.println("Display vokal words
removed");
ArrayList<String> RemovedWords = new ArrayList<String>();
for (int i = 0; i < allWords.size(); i++) {
String word = allWords.get(i);
RemovedWords.add(word.replaceAll("[a,i,u,e,o]", ""));
}
System.out.println(RemovedWords);
}
}