Given two strings str1 and str2 as input, determine whether str2 occurs with str1 or not?

Return the number of times that the string "hello" appears anywhere in the given string.

Sample Input #1
count("abc hello def")

Sample Output #1
1

Sample Input #2
count("Hi. Hello. Hello. Ok")

Sample Output #2
2

Sample Input #3
count("hi")

Sample Output #3
0

MyApproach

public int count(String str)
{
    String str1="Hello";

    int l1=str.length();
    int l2=str1.length();
    if(l1<l2)
    {
     return 0;
    }
    else
    {
     int count=0;
     int p=0;
     for(int j=0;j<l1;j++)
     {

         if( (c1==(c2+32)) || (c1==(c2-32)))
         {
             p++;
         }
         if(p==l1)
         {
             count++;
             p=0;
         }

      }

     return count;
   }

    //write your code here

  }
}

Output       TestcaseParameters Testcase Actual Answer  Expected

No output   Hello how are you'            null           1               

I am getting the following output.

Can anyone tell me what I am doing wrong?