public static void main(String[] args) {
Map<Integer,Integer> map = new HashMap<>();
List<Integer> list1 = new ArrayList<>();
int a0 = 0;
int a1 = 0;
int a2 = 0;
int a3 = 0;
int a4 = 0;
int a5 = 0;
int a6 = 0;
int a7 = 0;
int a8 = 0;
int a9 = 0;
int time = 0;
List<String> list = new ArrayList<>();
for (int k = 0; k < 24; k++) {
int minutes = 0;
for (int j = 0; j < 60; j++) {
int second = 0;
for (int i = 0; i < 60; i++) {
String data;
if (k < 10) {
if (j < 10) {
if (i < 10) {
data = 0 + "" + time + "" + 0 + minutes + "" + 0 + second;
list.add(data);
} else {
data = 0 + "" + time + "" + 0 + minutes + "" + second;
list.add(data);
}
} else {
if (i < 10) {
data = 0 + "" + time + "" + minutes + "" + 0 + second;
list.add(data);
} else {
data = 0 + "" + time + "" + minutes + "" + second;
list.add(data);
}
}
} else {
if (j < 10) {
if (i < 10) {
data = time + "" + 0 + minutes + "" + 0 + second;
list.add(data);
} else {
data = time + "" + 0 + minutes + "" + second;
list.add(data);
}
} else {
if (i < 10) {
data = time + "" + minutes + "" + 0 + second;
list.add(data);
} else {
data = time + "" + minutes + "" + second;
list.add(data);
}
}
}
second++;
}
minutes++;
}
time++;
}

    Iterator<String> iterator = list.stream().iterator();
    while (iterator.hasNext()){
        String next = iterator.next();
        String[] split = next.split("");
        for (String s1 : split){
            switch (Integer.parseInt(s1.trim())){
                case 0:a0++;break;
                case 1:a1++;break;
                case 2:a2++;break;
                case 3:a3++;break;
                case 4:a4++;break;
                case 5:a5++;break;
                case 6:a6++;break;
                case 7:a7++;break;
                case 8:a8++;break;
                case 9:a9++;break;
            }
        }
    }
    map.put(0,a0);
    map.put(1,a1);
    map.put(2,a2);
    map.put(3,a3);
    map.put(4,a4);
    map.put(5,a5);
    map.put(6,a6);
    map.put(7,a7);
    map.put(8,a8);
    map.put(9,a9);
    System.out.println(map);
}

}