查一個數組中的數字出現的次數

public class Hello {
	public static void main(String[] args) {
		int[] arr = { 1, 5, 2, 54, 3, 6, 4, 3 ,3,3};
		
		int count = 1;
		//先作排序
		for (int i = 0; i < arr.length - 1; i++) {
			for (int j = 0; j < arr.length - 1 - i; j++) {
				if (arr[j] > arr[j + 1]) {
					int temp = arr[j];
					arr[j] = arr[j + 1];
					arr[j + 1] = temp;
				}
			}
		}
		for (int i : arr) {
			System.out.print(i+" ");
		}
		//循環比較
		for (int i = 0; i < arr.length-1; i++) {
			if(arr[i] == arr[i+1]) {
				count++;
			}
		}
		System.out.println();
		System.out.println("count:"+count);
		
	}

}
複製代碼