Question

Write a program with overloaded methods to implement the following:

Overload a method fnTab(), given that:

1. int fnTab(String s) − to return how many digits are present in the argument string.
2. String fnTab (String s2, char cd) − to create a new string from argument string s2 such that character cd is removed from it (if present).
3. String fnTab (String s1, String s2) − to concatenate the shorter string behind the longer string and return that. For equal length of both strings, return "O".

Answer 1

import java.util.*;
class clOver
{
    int fnTab(String s)
    {
        int c = 0;
        for(int k = 0; k < s.length(); k++)
        {
            char ch = s.charAt(k);
            if(ch >= '0' && ch <= '9')
            {
                c++;
            }
        }
        return c;
    }
    String fnTab(String s, char cd)
    {
        String s2 = "";
        for(int k = 0; k < s.length(); k++)
        {
            char ch = s.charAt(k);
            if(ch != cd)
            {
                s2 = s2 + ch;
            }
        }
        return s2;
    }
    String fnTab(String s1, String s2)
    {
        String s3 = "";
        if(s1.length() > s2.length())
        {
            s3 = s1 + s2;
        }
        else if(s2.length() > s1.length())
        {
            s3 = s2 + s1;
        }
        else
        {
            s3 = "0";
        }
        return s3;
    }
    void main()
    {
        clOver obt = new clOver();
        int R1 = fnTab("Code 72#Zpp81/93");
        System.out.println(" R1 = " + R1);
        String R2 = fnTab("january 31, march 31, august 31", 'a');
        System.out.println(" R2 = " + R2);
        String R3 = fnTab("FEBRUARY”, "JUNE");
        System.out.println(" R3 = " + R3);
        String R4 = fnTab("NOVEMBER", “DECEMBER");
        System.out.println(" R3 = " + R4);
        String R5 = fnTab("APRIL", “AUGUST”);
        System.out.println(" R3 = "+ R5);
    }
}

Output:

R1 = 6
R2 = jnury 31, mrch 31, ugust 31
R3 = FEBRUARYJUNE
R3 = 0
R3 = AUGUSTAPRIL