function requiring more than one return statements

I am posting here two functions. In the findPrime(int m, int i, int n) I have one outer if and outer else block from both the block I am getting return so it can be considered that the function is returning something I put same structure in endOther(String a, String b) i.e. there are two main if-else blocks both are returning value as per function's return type so we can say that function is returning something but the endOther(String a, String b) function is throwing compile time error saying that put return statement while first function is not throwing such error. I am not understanding this issue please help me. Type both the functions in eclipse and check

**1.**static boolean findPrime(int m, int i, int n){

if(n == 0 || n == 1)
return false;
else {

if(i <= m)
{
 if(n%i == 0) 
//if(m%i == 0)
return false;
else {
i++;
//return findPrime(m,i);
return findPrime(m,i,n);
}

}

else
{
return true;
}


}
}

---

 **2.** public boolean endOther(String a, String b) {
              if(a.length()==b.length())
              {
              if(a.equals(b))
                return true;
                else
                return false;

              }
              else {
              if(a.length()>b.length()){
              if(a.substring(a.length()-b.length(),b.length()).equals(b))
              return true;
              }

              else { if(b.substring(b.length()-a.length(),a.length()).equals(a))
              return true;
              else
              return false;
              }

              }


            }