BlueJ Programs Function Overloading On String

 Design a class to overload a function check() as follows:

i) void check(String str, char ch) – to find and print the frequency of a character in a string.

Example :Input: Str = “Computer” ch = ‘e’

Output: number of e present is=1

ii) void check (String s1) – to display only the vowels from string s1 , after converting it to lower case.

Example :Input:S1= “Vidyanagar” 

Output: i a a a

Program

class Str
{
  public void check(String str, char ch) 
  {
    int count = 0;
    for (int i = 0; i < str.length(); i++) 
    {
      char Char = str.charAt(i);
      if (ch == Char) 
      {
        count++;
      }
    }
    System.out.println("number of "+ch+ " present is = " + count);
  }
  public void check(String s1) 
  {
    s1 = s1.toLowerCase();
    for (int i = 0; i < s1.length(); i++) 
    {
      char Char = s1.charAt(i);
      if (Char == 'a' || Char == 'e' || Char == 'i' ||Char == 'o'
          || Char == 'u') {
        System.out.print(Char + " " );
      }
    }
  }
  
    public static void main(String args[])
  {
    Str ob = new Str();
    ob.check("Computer",'e');
    ob.check("Vidyanagar");
  }
}