Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Sort subset of array elements in Java
The java.util.Arrays.sort() method can be used to sort a subset of the array elements in Java. This method has three arguments i.e. the array to be sorted, the index of the first element of the subset (included in the sorted elements) and the index of the last element of the subset (excluded from the sorted elements). Also, the Arrays.sort() method does not return any value.
A program that demonstrates this is given as follows −
Example
import java.util.Arrays;
public class Demo {
public static void main(String[] args) {
int arr[] = { 1, 9, 7, 3, 2, 8, 4, 6, 5};
System.out.print("The original array is: ");
for (int i : arr) {
System.out.print(i + " ");
}
Arrays.sort(arr, 2, 8);
System.out.print("
The array after its subset is sorted is: ");
for (int i : arr) {
System.out.print(i + " ");
}
}
}output
The original array is: 1 9 7 3 2 8 4 6 5 The array after its subset is sorted is: 1 9 2 3 4 6 7 8 5
Now let us understand the above program.
First the array arr is defined and then printed using a for loop. A code snippet which demonstrates this is as follows −
int arr[] = { 1, 9, 7, 3, 2, 8, 4, 6, 5};
System.out.print("The original array is: ");
for (int i : arr) {
System.out.print(i + " ");
}Then the Arrays.sort() method is used to sort the subset of the array from index 2 to index 8. The element at index 2 is included in the sorting while the element at index 8 is not. Then the array with the sorted subset is displayed using a for loop. A code snippet which demonstrates this is as follows −
Arrays.sort(arr, 2, 8);
System.out.print("
The array after its subset is sorted is: ");
for (int i : arr) {
System.out.print(i + " ");
}
4K+ Views
