7-ma’ruza Javada massivlar

ArrayList da saralash usullari

1. Yuqoridan quyiga qarab
2. Quyidan yuqoriga qarab
Yuqoridan quyiga qarab saralashga misollar
Sting turdagi ArrayList yaratamiz va undagi ma'lumotlarni saralaymiz
import java.util.*;
public class Details {
public static void main(String args[])
{
ArrayList listofcountries = new ArrayList();
listofcountries.add("India");
listofcountries.add("US");
listofcountries.add("China");
listofcountries.add("Uzbekistan");
/* Saralanmagan ro'yhat */
System.out.println("Saralashdan oldin:");
for(String counter: listofcountries)
{
System.out.println(counter);
}
/* Saralash ifodasi */
Collections.sort(listofcountries);
/* Saralangan ro'yhat */
System.out.println("Saralashdan keyin:");
for(String counter: listofcountries)
{
System.out.println(counter);
}
}
}
Ekranda
Saralashdan oldin:
India
US
China
Uzbekistan
Saralashdan keyin:
China
India
US
uzbekistan

Integer sortga misol:

import java.util.*;
public class ArrayListOfInteger {
public static void main(String args[]){
ArrayList arraylist = new ArrayList();
arraylist.add(11);
arraylist.add(2);
arraylist.add(7);
arraylist.add(3);
/* ArrayList saralashdan avval */
System.out.println("Saralashdan oldin:");
for(int counter: arraylist)
{
System.out.println(counter);
}
/* Collections.sort 'dan foydalanib arrayList ni saralash*/
Collections.sort(arraylist);
/* ArrayList saralashdan keyin*/
System.out.println("Saralashdan keyin:");