버블 정렬 알고리즘

public class Study{
	public static void main(String[] args){
    	int[] arr = {9,7,2,20,5};
        
        for(int i = 0; i<arr.length-1; i++){
        	for(int j = i+1; j<arr.length; j++){
            	if(arr[i] > arr[j]){ 
                	int tmp = arr[i];
                    arr[i] = arr[j];
                    arr[j] = tmp;
                }
            }
        }
        System.out.println(Arrays.toString(arr)); // [2,5,7,9,20]
    }
}

 

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