WAP read charator form file and Display if charator if is alphabet then reverse it Case wheter it digit or Space

/*WAP read charator form file and Display
if charator if is alphabet then reverse it Case
wheter it digit or Space
*/
import java.io.*;
class Slip1
{
public static void main(String args[])throws IOException
{
int c;
try
{
FileReader fr=new FileReader("a.txt");
while((c=fr.read())!=-1)
{
if(c>=65&&c<=90)
{
c=c+32;
System.out.print((char)c);
}
else if(c>=97&&c<=122)
{
c=c-32;
System.out.print((char)c);
}
else if((char)c==' ')
{
System.out.print("Space"+' ');
}
else if(c>=48&&c<=57)
{
System.out.print("Digit"+(char)c+' ');
}
else
{
System.out.print((char)c);
}

}
fr.close();
}catch(Exception e)
{
System.out.println(e);
}
}
}
/*Output:-
a.txt
Shinde Sachinde 9767@gmail.com
RS1234
D:\javapro\file>javac Slip1.java
D:\javapro\file>java Slip1
sHINDESpace sACHINSpace Digit9 Digit7 Digit6 Digit7 @GMAIL.COM
rsDigit1 Digit2 Digit3 Digit4
*/

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To copy the content one file into the another file while copying change the case of alphabet and replase all Digit by '*'.

/*To copy the content one file into the another file
while copying change the case of alphabet
and replase all Digit by '*'.
*/
import java.io.*;
class Slip2
{
public static void main(String args[])throws IOException
{
int c;
try
{
FileReader fr=new FileReader("a.txt");
FileWriter fw=new FileWriter("b.txt");
while((c=fr.read())!=-1)
{
if(c>=65&&c<=90)
{
c=c+32;
fw.write(c);
}
else if(c>=97&&c<=122)
{
c=c-32;
fw.write(c);
}
else if(c>=48&&c<=57)
{
fw.write('*');
}
else
{
fw.write(c);
}

}
System.out.println("Copy Successfully");
fr.close();
fw.close();
}catch(Exception e)
{
System.out.println(e);
}
}
}
/*Output:-
a.txtfile
Shinde Sachin 9767@gmail.com
1234R

D:\javapro\file>javac Slip2.java

D:\javapro\file>java Slip2
Copy Successfully

D:\javapro\file>
b.txt
sHINDE sACHIN ****@GMAIL.COM
****r
*/

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Count the Spaces in file

//Count the Spaces in file
import java.io.*;
class Space
{
public static void main(String args[])throws IOException
{
int c,lcnt=1;
try
{
FileReader fr=new FileReader("Space.java");
while((c=fr.read())!=-1)
{
System.out.print((char)c);
if((char)c==' ')
{
lcnt ++;
}
}fr.close();
System.out.println("no of  Space in file"+lcnt);
}catch(Exception e)
{
System.out.println(e);
}
}
}

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Count the lines in file

//Count the lines in file
import java.io.*;
class Line
{
public static void main(String args[])throws IOException
{
int c,lcnt=1;
try
{
FileReader fr=new FileReader("Line.java");
while((c=fr.read())!=-1)
{
System.out.print((char)c);
if((char)c=='\n')
{
lcnt ++;
}
}fr.close();
System.out.println("no of lines io file"+lcnt);
}catch(Exception e)
{
System.out.println(e);
}
}
}
/*
D:\javapro\file>javac Line.java

D:\javapro\file>java Line
//Count the lines in file
import java.io.*;
class Line
{
        public static void main(String args[])throws IOException
        {
                int c,lcnt=1;
                try
                {
                        FileReader fr=new FileReader("Line.java");
                        while((c=fr.read())!=-1)
                        {
                                System.out.print((char)c);
                                if((char)c=='\n')
                                {
                                        lcnt ++;
                                }
                        }fr.close();
                System.out.println("no of lines io file"+lcnt);
                }catch(Exception e)
                {
                        System.out.println(e);
                }
        }
}
no of lines io file26
*/

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Count the Spaces,word,lines,space in file

//Count the Spaces,word,lines,space in file
import java.io.*;
class Count
{
public static void main(String args[])//throws IOException
{
int c,scnt=0,ccnt=0,lcnt=0,wcnt=0;
try
{
FileReader fr=new FileReader("Count.java");
while((c=fr.read())!=-1)
{
ccnt++;
if((char)c==' ')
{
scnt ++;
}
if((char)c=='\n')
{
lcnt++;
}
if((char)c==' '||(char)c=='\n')
{
++wcnt;
}
}
fr.close();
System.out.println("no of  Space in file"+scnt);
System.out.println("no of  Line in file"+lcnt);
System.out.println("no of  Word in file"+wcnt);
System.out.println("no of  Character in file"+ccnt);
}catch(Exception e)
{
System.out.println(e);
}
}
}
/*Output:-
*/

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Simple copy one file to another file and Display on the cmd prompt

//Simple copy one file to another file and Display on the cmd prompt
import java.io.*;
class CopyDis
{
public static void main(String args[])throws IOException
{
int c;
try
{
FileReader fr=new FileReader("CopyDis.java");
FileWriter fw=new FileWriter("SimpleCopy.txt");
while((c=fr.read())!=-1)
{
fw.write(c);
System.out.print((char)c);
}
System.out.println("Copy Successfully");
fr.close();
fw.close();
}catch(Exception e)
{
System.out.println(e);
}
}
}
/*Output:-
*/

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Simple copy one file to another file

//Simple copy one file to another file
import java.io.*;
class Copy
{
public static void main(String args[])throws IOException
{
int c;
try
{
FileReader fr=new FileReader("Copy.java");
FileWriter fw=new FileWriter("SimpleCopy.txt");
while((c=fr.read())!=-1)
{
fw.write(c);
}
System.out.println("Copy Successfully");
fr.close();
fw.close();
}catch(Exception e)
{
System.out.println(e);
}
}
}
/*Output:-
*/

Continue

Write a java program to accept n name of cities & Sort them descending order.

class SortCity

{

            public static void main(String arg[])

            {

                        String name[]=new String[10];

                        int l=arg.length;

                        String temp;

                                    for(int i=0;i<l;i++)

                                    {

                                                name[i]=arg[i];

                                    }

                                    for(int j=0;j<l;j++)

                                    {

                                                for(int k=j+1;k<l;k++)

                                                {

                                                            if((name[j].compareTo(name[k]))<0)

                                                            {

                                                                        temp=name[j];

                                                                        name[j]=name[k];

                                                                        name[k]=temp;

                                                            }

                                                }

                                    }

                                    System.out.println("Sorted City Are-");

                                    for(int i=0;i<l;i++)

                                    {         

                                                System.out.println(name[i]);

                                    }

            }

}

/*OUTPUT

D:\javapro>javac SortCity.java

D:\javapro>java SortCity  pune nagar solapur thane satara baramati

Sorted City Are-

thane

solapur

satara

pune

nagar

baramati

*/

Continue

Define abstract class Shape with abstract method area() & Volume().Calculate area & Volume of Cone & Cylinder.

import java.io.*;
import java.lang.*;
abstract class Shape
{
float pi=3.14f;
abstract void area();
abstract void volume();
}
class Cone extends Shape
{
int red,side,height;
Cone(int r,int s,int h)
{
red=r;
side=s;
height=h;
}
void area()
{
float a=pi*red*side;
System.out.println("Area of Cone-"+a);
}
void volume()
{
float v=pi*red*red*(height/3);
System.out.println("Volume of Cone-"+v);
}
}
class Cylinder extends Shape
{
int red ,height;
Cylinder(int r,int h)
{
red=r;
height=h;
}
void area()
{
float a1=2*pi*red*height+2*pi*red*red;
System.out.println("Area of Cylinder-"+a1);
}
void volume()
{
float v1=pi*red*red*height;
System.out.println("Volume of Cylinder-"+v1);
}
}
class ShapeDemo1
{
public static void main(String arg[])
{
int r,s,h;
DataInputStream din=new DataInputStream(System.in);
try
{
System.out.println("Enter the values of Redius, Side , height-");
r=Integer.parseInt(din.readLine());
s=Integer.parseInt(din.readLine());
h=Integer.parseInt(din.readLine());
Cone c1=new Cone(r,s,h);
c1.area();
c1.volume();
Cylinder c2=new Cylinder(r,h);
c2.area();
c2.volume();
}
catch(Exception e)
{
System.out.println(e.getMessage());
}
}
}
/*Output
D:\javapro\Ass2>javac ShapeDemo1.java
Note: ShapeDemo1.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.

D:\javapro\Ass2>java ShapeDemo1
Enter the values of Redius, Side , height-
4
6
8
Area of Cone-75.36
Volume of Cone-100.48
Area of Cylinder-301.44
Volume of Cylinder-401.92
*/

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Create an interface Shape with method area() Calculate area of Circle and Sphere. (Use final keyword)

import java.io.*;
interface Shape
{
final float pi=3.14f;
float area(int r);
}
class Circle implements Shape
{
public float area(int r)
{
return(pi*r*r);
}
}
class Sphere implements Shape
{
public float area(int r)
{
return(4*pi*r*r);
}
}
class ShapeDemo
{
public static void main(String arg[])
{
int r;
BufferedReader din=new BufferedReader(new InputStreamReader(System.in));
try
{
System.out.print("Enter radius-");
r=Integer.parseInt(din.readLine());
Circle c1=new Circle();
Sphere s1=new Sphere();
System.out.println("Area of Circle:"+c1.area(r));
System.out.println("Area of Sphere:"+s1.area(r));
}
catch(Exception e)
{
System.out.println(e.getMessage());
}
}
}
/*Output
D:\javapro\Ass2>javac ShapeDemo.java

D:\javapro\Ass2>java ShapeDemo
Enter radius-5
Area of Circle:78.5
Area of Sphere:314.0
*/

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WAP to accept n cricket player, display average run of single player & all players. (Use array of object, method overloading & static keyword).

import java.io.*;
class Player
{
int p_code,run;
String p_name;
int i_played;
int nooftime_notout;
float avg;
void accept()
{
DataInputStream din=new DataInputStream(System.in);
try
{
System.out.print("Enter the player code-");
p_code=Integer.parseInt(din.readLine());
System.out.print("Enter the player name-");
p_name=din.readLine();
System.out.print("Enter the player runs-");
run=Integer.parseInt(din.readLine());
System.out.print("Enter the player inning played-");
i_played=Integer.parseInt(din.readLine());
System.out.print("Enter the player no of time not out-");
nooftime_notout=Integer.parseInt(din.readLine());
}
catch(Exception e)
{
System.out.println(e.getMessage());
}
}
void display()
{

avg=run/(i_played-nooftime_notout);
System.out.println(p_name+"         "+avg);
}
void display(String nm)
{
if((nm.compareTo(p_name))==0)
{
avg=run/(i_played-nooftime_notout);
System.out.println(p_name+"         "+avg);
}
}
}
class PlayerDemo
{
public static void main(String arg[])
{
Player p1[]=new Player[10];
//Player p=new Player();
int i,n,ch;
boolean flag=true;
String nm;
DataInputStream din=new DataInputStream(System.in);
try
{
System.out.print("How many record accept u want-");
n=Integer.parseInt(din.readLine());
for(i=0;i<n;i++)
{
p1[i]=new Player();
p1[i].accept();
}
while(true)
{
System.out.println("\n1.Display average of all player\n2.Display average run of single player \n3.Exit ");
System.out.print("Enter ur Choice-");
ch=Integer.parseInt(din.readLine());

switch(ch)
{
case 1:
System.out.println("Player name is "+"   "+"Average is");
for(i=0;i<n;i++)
{
p1[i].display();
}
break;
case 2:
System.out.print("Enter player name whose display Average-");
nm=din.readLine();
System.out.println("\nPlayer name is "+"   "+"Average is");
for(i=0;i<n;i++)
{
p1[i].display(nm);
}
break;
case 3:
System.exit(0);
break;
default:

System.out.println("invalid Choice");

}
}
}
catch(Exception e)
{
System.out.println(e.getMessage());
}
}
}
/*Output
D:\javapro\Ass2>javac PlayerDemo.java
Note: PlayerDemo.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.

D:\javapro\Ass2>java PlayerDemo
How many record accept u want-2
Enter the player code-101
Enter the player name-sachin
Enter the player runs-5700
Enter the player inning played-45
Enter the player no of time not out-85
Enter the player code-102
Enter the player name-dhoni
Enter the player runs-4500
Enter the player inning played-86
Enter the player no of time not out-45

1.Display average of all player
2.Display average run of single player
3.Exit
Enter ur Choice-1
Player name is    Average is
sachin               -142.0
dhoni                109.0

1.Display average of all player
2.Display average run of single player
3.Exit
Enter ur Choice-2
Enter player name whose display Average-sachin

Player name is    Average is
sachin               -142.0

1.Display average of all player
2.Display average run of single player
3.Exit
Enter ur Choice-3
*/

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