[Java] 배열, arraylist 정렬

arraylist 정렬

import java.util.Collections;

 

ArrayList<Integer> arraylist = new ArrayList<>();

Collections.sort(arraylist);

 

배열 정렬

import java.util.Arrays;

 

int[] intArray = {5,1,4,2,6,3,7};

Arrays.sort(intArray); // intArray ={1,2,3,4,5,6,7}