java-programs/hiCountBi.java at master · modkhalid/java-programs · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
package coding;

public class hiCountBi {
	public static void main(String[] args) {
		String str="himofhisddsdshi";
//		System.out.println(CountHi(str));
//		System.out.println(RemoveHi(str));
		System.out.println(RplaceHi(str));
//		System.out.println("hisjkdhskjdhs".substring(0,2).equals("hi"));

	}


	public static int CountHi(String str) {
		if(str.length()==1 || str.length()==0) {
			return 0;
		}


		if(str.substring(0,2).equals("hi")) {
			return CountHi(str.substring(2))+1;

		}else {
			return CountHi(str.substring(1));
		}
	}

	public static String RemoveHi(String str) {
		if(str.length()==1 || str.length()==0) {
			return str;
		}


		if(str.substring(0,2).equals("hi")) {
			return RemoveHi(str.substring(2));

		}else {
			return str.charAt(0)+RemoveHi(str.substring(1));
		}
	}


	public static String RplaceHi(String str) {
		if(str.length()==1 || str.length()==0) {
			return str;
		}


		if(str.substring(0,2).equals("hi")) {
			return "Bi"+RplaceHi(str.substring(2));

		}else {
			return str.charAt(0)+RplaceHi(str.substring(1));
		}
	}


}