PROGRAM FOR FINDING NUMBER OF OCCURENCES OFA STRING IN GIVEN STRING

 import java.lang.*;

class number

{

            int c,sublen,off;

            number( )

            {

                        c=0;

            }

        void occur(String a,String b)

            {

                        sublen=b.length( );

                        off=a.indexOf(b,0);

                         while(off!=-1)

                        {

                                     c++;

                                     off=off+sublen;

                                     off=a.indexOf(b,off);

                        }

                        System.out.println("number of occurenes" +c);

            }

}

class count

{

  public static void main(String args[ ])

    {

            String str="this is java";

            String sub="is";

            System.out.println("given String="+ str);

            System.out.println("subString is="+ sub);

            number obj=new number( );

            obj.occur(str,sub);

    }

}

OUTPUT:

given String=this is java

subString is=is

number of occurenes2