String Function - III [ Find-Replace & Initial ]

---

Print the Initial of given name

---

import java.io.*;

    public class Initial

        {

            public static void main(String args[])throws IOException

                {

                    String Name;

                    BufferedReader Br=new BufferedReader(new InputStreamReader(System.in));

                    System.out.print("\n\tEnter Name : ");

                    Name=Br.readLine();

                    Initial S=new Initial();

                    S.PrintIntial(Name);

                }

            void PrintIntial(String S)

                {

                    String Result="";

                    int j=S.lastIndexOf(" ");

                    S=" "+S;

                    for(int i=0;i<S.length();i++)

                        {

                            if(S.charAt(i)==' ' && S.charAt(i+1)!=' ')

                                {

                                    Result=Result+S.charAt(i+1)+". ";

                                }

                        }

                    Result=Result+S.substring(j+1);   

                    System.out.print("\t"+Result);   

                }

        }

---

Output:

         Enter Name : Sachin Ramesh Tendulkar

         S. R.  Tendulkar

---

---

Find a given word in a string and replace with another

---

import java.io.*;

    public class Find_Rep

        {

            public static void main(String args[])throws IOException

                {

                    String Str,Sword,Rword,Result;

                    BufferedReader Br=new BufferedReader(new InputStreamReader(System.in));

                    System.out.print("\n\tEnter a Sentence : ");

                    Str=Br.readLine();

                    System.out.print("\n\tEnter a Word to Replace : ");

                    Sword=Br.readLine();  

                    System.out.print("\n\tEnter a Word to Search : ");

                    Rword=Br.readLine();

                    Find_Rep S=new Find_Rep();

                    Result=S.FindRep(Str,Sword,Rword);

                    System.out.println("\tOld Sentence : '"+Str+"'");

                    System.out.println("\n\tAfter Repllaceing : '"+Sword+"'  With '"+Rword+"'");

                    System.out.println("\n\tThe New Sentence : ‘  "+Result+"'");

                }

            String FindRep(String S,String S1,String S2)

                {

                    int j=0;

                    for(int i=0;i<S.length();i++)

                        {

                            int k=S.toUpperCase().indexOf(S1.toUpperCase());

                            if(k>=0)

                                {

                                    S=S.substring(0,k)+S2+S.substring(k+S1.length());

                                    j=k+S1.length();

                                    i=j;

                                }

                        }

                    return S;   

                }

        }

---

Output:

          Enter a Sentence : I live in Australia. I love Australia.

          Enter a Word to Search : Australia

          Enter a Word to Replace : India

          Old Sentence : 'I live in Australia. I love Australia.'

          After Repllaceing : 'Australia'  With 'India'

          The New Sentence : I live in India. I love India.'

---