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package utils;

import org.junit.Test;

import static org.hamcrest.CoreMatchers.is;

import static org.junit.Assert.assertThat;

public class Utils {

/*

TASK

swap util 분리

*/

@Test

public void test() {

int[] arr = {1,2,3};

int[] chagedArr = {1,3,2};

assertThat(swapValue(arr, 1,2), is(chagedArr));

}

public static int[] swapValue(int[] arr, int a, int b) {

int temp = arr[a];

arr[a] = arr[b];

arr[b] = temp;

return arr;

}

public static char[] swapValue(char[] arr, int a, int b) {

char temp = arr[a];

arr[a] = arr[b];

arr[b] = temp;

return arr;

}

}