To get full information or details of algorithm to find vowels and consonants please have a look on the pages

http://seminarprojectsprintthread.php?tid=25871

http://seminarsprojects.net/Thread-program-in-%E2%80%9Clex%E2%80%9D-to-count-number-of-vowels-and-consonants?pid=47647

http://seminarsprojects.net/Thread-program-to-identify-vowels-and-consonants-given-as-input

http://seminarsprojects.net/Thread-program-in-%E2%80%9Clex%E2%80%9D-to-count-number-of-identifiers-and-keywords?pid=47655&mode=threaded

if you again feel trouble on algorithm ....etc

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Lexical Analyzer



Lexical Analyzer
The lexical analyzer is responsible for:
Reading in a stream of input characters
Produce as output a sequence of tokens
Upon get-next-token request from the parser, the analyzer
reads in a string of characters (lexeme) to generate a token.
For the remainder of the lecture, we will go over some examples
and an in class discussion of how the above works, and how we
can implement it.

Languages
We define a language as a set o ....etc

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import java.io.*;
class Figure
{
double x,y;
Figure(double l, double m)
{
x=l;
y=m;
}
}
class Rectangle extends Figure
{
Rectangle(double l, double m)
{
super(l,m);
}
double area()
{
return(x*y);
}
}
class Circle extends Figure
{
final float pi=3.14f;
Circle(double l,double m)
{
super(l,m);
}
double area()
{
return(pi*x);
}
}
class Triangle extends Figure
{
Triangle(double d1,double d2)
{
super(d1,d2);
}
double area()
{
return((x*y)/2);
}
}
clas ....etc

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//QuadEqn.java
package p;
interface Quadratic
{
void process();
}
public class QuadEqn implements Quadratic
{
double a,b,c,d;
public QuadEqn(double x,double y,double z)
{
a=x;
b=y;
c=z;
}
public void process()
{

d=b*b-(4*a*c);
if(d==0)
{
double r=-b/2*a;
System.out.println(Roots are equal.Root=\t+r);
}
else
if(d>0)
{
double sq=Math.sqrt(d);
double r1=(-b+sq)/2*a;
double r2=(-b-sq)/2*a;
System.out.println(Root1=\t+r1+\nRoot2=\t+r2);
}
else
System.out.println(Ro ....etc

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Algorithm:-
begin
if a,e,I,o,u or A,E,I,O,U
then
printf It is a vowel
else
printf It is a consonant
end

1. LEX program to count number of vowels and consonants in a given input string

%%
{printf( it is vowel );}
{printf( it is consonant );}
%%
main()
{
yylex();
}
int yywrap()
{
return 1;
}

Output:

$./a.out
a
it is a vowel
g
it is a consonant ....etc

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import java.io.*;
class Area
{
void area(int l,int b)
{
int ar=l*b;
System.out.println(Area of rectangle=+ar);
}
void area(double r,double h)
{
double ar=(3.14*r*r*h);
System.out.println(Area of circle=+ar);
}
void area(int a)
{
int ar=a*a;
System.out.println(Area of square=+ar);
}
void area(float b,float h)
{
double ar=0.5*b*h;
System.out.println(Area of triangle=+ar);
}
}

class Newar
{
public static void main(String args)throws IOException
{
Area r=new Area();
DataInputStream dis=new DataI ....etc

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import java.io.*;
class Broom
{
int length,width,height;
Broom(int l,int w,int h)
{
length=l;
width=w;
height=h;
}
int volume()
{
return(length*width*height);
}
}
class Kroom extends Broom
{
Kroom(int l,int w,int h)
{
super(l,w,h);
}
void display()
{
System.out.println(Volume is:+volume());
}
}

class Nbroom1
{
public static void main(String args)throws IOException
{
DataInputStream dis=new DataInputStream(System.in);
System.out.println(enter the parametrs of bedroom);
System.out.println(enter l ....etc

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plz help me with lexical analysis ..
recently i m working on seminar for system-programing domain.. were in my topic is realted to parsing and lexical analyser..
so plz provide me some links ....etc

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import java.io.*;
class Vroom
{
int length,width,height;
Vroom()
{
length=width=height=0;
}
Vroom(int l,int w,int h)
{
length=l;
width=w;
height=h;
}
Vroom(Vroom v)
{
length=v.length;
width=v.width;
height=v.height;
}
int volume()
{
return(length*width*height);
}
}

class Newv
{
public static void main(String args)throws IOException
{
DataInputStream dis=new DataInputStream(System.in);
System.out.println(enter the length);
int i=Integer.parseInt(dis.readLine());
Syst ....etc

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import java.io.*;
class Arraysum
{
int temp;
int sum(int a,int n)
{
if(n==1)
return a;
else
{
temp =sum(a,n-1);
temp=temp+a;
return temp;
}
}
}
class Newarray
{
public static void main(String args)throws IOException
{
DataInputStream dis=new DataInputStream(System.in);
System.out.println(Enter limit);
int n=Integer.parseInt(dis.readLine());
int a=new int;
System.out.println(Enter the array);


for(int i=0;i {
a=Integer.parseInt(dis.readLin ....etc

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