public class bubblesort {

public static void main(String[] args) {

int arr[] = {3,5,2,1,9,4};

//bubble sort

for (int i = 0; i < arr.length; i++) {

for (int j = 0; j < arr.length-i-1; j++) {

if(arr[j] > arr[j+1]){

//swap

int temp = arr[j];

arr[j] = arr[j+1];

arr[j+1] = temp;

}

}

}

printArray(arr);

}

public static void printArray(int[] a){

for (int i : a) {

System.out.println(i);

}

}

}