JAVA Methods

method overloading

Class and object in JAVA programming

import java.io.*;
import java.util.*;
//set path = C:\Program Files\Java\jdk1.7.0_51\bin

class readinput1
 {

    int id,size;
float rate;
String shirtmodel,color;

readinput1()
{
id=0;
size=1;
rate=100;
shirtmodel="AAA";
color="red";
}
readinput1(String col)
{
this();
color=col;
}
readinput1(String col,int id1)
{
this();
this.id=id1;
color=col;
}
readinput1(String col,int id1,String model,int size1)
{
this();
id=id1;
color=col;
size=size1;
shirtmodel=model;
}
readinput1(String col,int id1,String model,int size1,float rate1)
{
id=id1;
color=col;
size=size1;
shirtmodel=model;
rate=rate1;
}
void display()
{
System.out.println("Rate"+rate);
System.out.println("ID"+id);
System.out.println("Shirt Model"+shirtmodel);
System.out.println("Shirt color"+color);
System.out.println("Shirt Size"+size);

}
};
public class readinput
{

    public static void main(String[] args) throws IOException
       {
            int id,size;
float rate;
String shirtmodel,color;
BufferedReader bin;
DataInputStream ds;

            bin = new BufferedReader(new InputStreamReader(System.in));
             
                //System.out.println("Enter number 1 to get into your class");
                //id = Integer.parseInt(bin.readLine());
//rate = Float.parseFloat(bin.readLine());

ds=new DataInputStream(System.in);

System.out.println("Enter id");
id=Integer.parseInt(ds.readLine());



            Scanner scan = new Scanner(System. in);
System.out.println("Enter shirt model");

shirtmodel = scan.next();
System.out.println("Enter color");
color = scan.next();
//rate=scan.nextFloat();
System.out.println("Enter the shirt size");
size=scan.nextInt();
System.out.println("Enter the rate ");
rate=Float.parseFloat(ds.readLine());
readinput1 ripss=new readinput1();
System.out.println("Default Constructor ");
ripss.display();
System.out.println("Enter the choice(1/2/3/4) ");
int ch=Integer.parseInt(ds.readLine());

switch(ch)
{
case 1: System.out.println("change color using single Parameter Constructor ");
readinput1 rips=new readinput1(color);rips.display();break;
case 2: System.out.println("change color and id using two Parameters Constructor ");
readinput1 rip=new readinput1(color,id);rip.display();break;
case 3: System.out.println("change color,id,shirtmodel,size using  Parameters(4) Constructor ");
readinput1 rip1=new readinput1(color,id,shirtmodel,size);rip1.display();break;
case 4: System.out.println("change color,id,shirtmodel,size,rate using  Parameters(5) Constructor ");
readinput1 rip2=new readinput1(color,id,shirtmodel,size,rate);rip2.display();break;
default: System.out.println("Enter the  valid input from 1 to 4 for choice ");

    }        
        }
}

Image Processing :-foreground detection code

%foreground detection
close all
f=imread('d:\rabit.jpg');
grayrabit = rgb2gray(f);
mask = grayrabit>170;
imshow(mask);
imwrite(mask,'d:\maskrabit.jpg','jpg');
f3=imread('d:\maskrabit.jpg');
f3=im2bw(f3);
fr=f(:,:,1);
 fg=f(:,:,2);
 fb=f(:,:,3);
 frm=immultiply(fr,f3);
 fgm=immultiply(fg,f3);
 fgb=immultiply(fb,f3);
 foreground=cat(3,frm,fgm,fgb);
imwrite(foreground,'d:\forerabit.jpg','jpg');
figure,imshow(f),figure,imshow(foreground)


%background detection
f=imread('d:\rabit.jpg');
grayrabit = rgb2gray(f);
mask = grayrabit<170;
imshow(mask);
imwrite(mask,'d:\maskrabit.jpg','jpg');
f3=imread('d:\maskrabit.jpg');
f3=im2bw(f3);
fr=f(:,:,1);
 fg=f(:,:,2);
 fb=f(:,:,3);
 frm=immultiply(fr,f3);
 fgm=immultiply(fg,f3);
 fgb=immultiply(fb,f3);
 background=cat(3,frm,fgm,fgb);
imwrite(background,'d:\bkdrabit.jpg','jpg');
 figure,imshow(f),figure,imshow(background);
fore=imread('d:\forerabit.jpg');
bkd=imread('d:\bkdrabit.jpg');
out=imdivide(bkd,fore);
edge1=edge(rgb2gray(fore),'sobel');
figure,imshow(edge1);
edge2=edge(rgb2gray(bkd),'sobel');
figure,imshow(edge2);
out1=imdivide(fore,bkd);
figure,imshow(out);
figure,imshow(out1);C = xor(rgb2gray(f),f3);imshow(C);

Image Processing :- Object Detection Code

f=imread('d:\rabit.jpg');
grayf = rgb2gray(f);
whiterabit= S2>180;
imwrite(whiterabit,'D:\rabitthres.jpg','jpg');
fmask=imread('d:\rabitthres.jpg');
fmask=im2bw(fmask);
fr=f(:,:,1);
fg=f(:,:,2);
fb=f(:,:,3);
frm=immultiply(fr,fmask);
fgm=immultiply(fg,fmask);
fgb=immultiply(fb,fmask);
fout=cat(3,fr,fg,fgb);
background=cat(3,frm,fgm,fgb);
figure,imshow(f),figure,imshow(fout),figure,imshow(background)

Image Processing - Segmentation

Roipoly

>> mask3=roipoly(f);

>> r=immultiply(mask3,f(:,:,1));

>> g=immultiply(mask3,f(:,:,2));

>> b=immultiply(mask3,f(:,:,3));

>> g3=cat(3,r,g,b);

>> imshow(g3);

>> g3=rgb2gray(g3);

>> plot(g3);

---------------------------------------------------------------------

Threshold 

 

close all
I=imread('D:\redfish.png');
imshow(I);
I1=im2double(I);
I2=mat2gray(I1);
I3=rgb2gray(I);
xx=graythresh(I);
for i= 1 : 5
bw=im2bw(I3,xx);
figure;imshow(bw);
imshow(I(:,:,1)>i & I(:,:,2)>i & I(:,:,3)>i)
end
% fthresholding by giving the range values (inbetween)
[x,map]=imread('D:\sae.png');
% s=uint8(256*ind2gray(x));
s=rgb2gray(x);
for i=10 : 200
figure,imshow(s>i & s<i+25)
end
----------------------------------------------
prog2

b=rgb2gray(a);
for i=10 : 200
figure,imshow(b>i);
% pause(5)
end
--------------------------------
[r,c,val]=find(I(:,:,1)>120)
a=I(:,:,1);

for i=1 : numel(r)

for j= 1 : numel(c)
r1=r(i);c1=c(i);
a1(r1,c1)=a(r1,c1);
end
end
imshow(a1);
-------------------------------------
function c=edgedetection(a,b)
%Edge detection
%==============
%a is a input image
%b is used to user supply a input
disp('Edge detection');
disp('1 -> Sobel');
disp('2 -> Prewitt');
disp('3 -> Roberts');
disp('4 -> Laplacian of a Gaussian');
disp('5 -> Zero crossing');
disp('6 -> Canny');
while b<=6
    b=input('Enter the value :');
    switch b
        case 1
            disp('1 -> Sobel');
            a=imread('D:\h3.jpg');
            s=edge(a,'sobel')
            imshow(s);
        case 2
            disp('2 -> Prewitt');
            a=imread('D:\h3.jpg');
            s=edge(a,'prewitt')
            imshow(s);
        case 3
            disp('3 -> Roberts');
            a=imread('D:\h3.jpg');
            s=edge(a,'Roberts')
            imshow(s);
         case 4
             disp('4 -> Laplacian of a Gaussian');
            a=imread('C:\MATLAB7\work\saranya\cameraman.tif');
            s=edge(a,'LoG')
            imshow(s);
        case 5
            disp('5 -> Zero crossing');
            a=imread('D:\h3.jpg');
            s=edge(a,'Zerocross')
            imshow(s);
        case 6
            disp('6 -> Canny');
            a=imread('D:\h3.jpg');
            s=edge(a,'canny')
            imshow(s);
       
        otherwise
            disp('Wrong input')
    end
end



-----------------------------------------------------
function c=linedetection()
%Line detection
%===============
%a is a input image
%b is used to user supply a input
a=imread('D:\h3.jpg');a=a(:,:,1);
disp('Line detection');b=input('Enter the value : ');
   
    switch b
        case 1
            disp('Filter a image');
            a=imread('D:\kio.jpg');a=a(:,:,1);
            w=[2 -1 -1;-1 2 -1;-1 -1 2];
            g=imfilter(double(a),w);
            imshow(g,[])
        case 2
            disp('Line detect to the top position');
           
            w=[2 -1 -1;-1 2 -1;-1 -1 2];
            g=imfilter(double(a),w);
            gtop=g(1:120,1:120);
            %gtop=pixeldup(gtop,4);
            figure,imshow(gtop,[])
        case 3
            disp('Line detect to the bottom position');
            w=[2 -1 -1;-1 2 -1;-1 -1 2];
            g=imfilter(double(a),w);
            gtop=g(1:120,1:120);
            %gtop=pixeldup(gtop,4);
            gbot=g(end-119:end,end-119:end);
            %gbot=pixeldup(gbot,4);
            figure,imshow(gbot,[])
        case 4
            disp('Line detect using absolute value');
            w=[2 -1 -1;-1 2 -1;-1 -1 2];
            g=imfilter(double(a),w);
            gtop=g(1:120,1:120);
            %gtop=pixeldup(gtop,4);
            gbot=g(end-119:end,end-119:end);
            %gbot=pixeldup(gbot,4);
            g=abs(g);
            figure,imshow(g,[])
        case 5
            disp('The point to enlarged');
            w=[2 -1 -1;-1 2 -1;-1 -1 2];
            g=imfilter(double(a),w);
            g=abs(g);
            T=max(g(:));
             g=g>=T;
            figure,imshow(g)
        otherwise
            disp('Wrong input');
    end
end
______________________________________________


function c=point(a,b)
%Point detection
%===============
%a is a input image
%b is used to user supply a input
disp('Point detection');
while b<=3
    b=input('Enter the value : ');
    switch b
        case 1
            a=imread('D:\fff.tif');
             w=[0 0 0;1 1 1;0 1 0];
             g=abs(imfilter(double(a),w));
             T=max(g(:));
             g=g>=T;
            imshow(a),figure,imshow(g)
        case 2
            a=imread('D:\mm.tif');
             w=[1 1 1;1 1 1;0 0 0];
             g=abs(imfilter(double(a),w));
             T=max(g(:));
             g=g>=T;
            imshow(a),figure,imshow(g)
            case 3
            a=imread('D:\RUG2.tif');
             w=[0 0 0;1 0 1;0 0 0];
             g=abs(imfilter(double(a),w));
             T=max(g(:));
             g=g>=T;
            imshow(a),figure,imshow(g)
        otherwise
            disp('Wrong input');
    end
end
-------------------------------------------------

function f=mat(f)
f=imread('D:\moon.tif');
c=mat2huff(f);
cr1=imratio(f,c);
end
------------------------------- 

Java Database Code for MS Acess using ODBC ( Sys DN) with navigation and manipulation

import java.io.*;
import java.util.*;
import java.sql.*;

public class dbpg4
{
public static int rno;


    public static void main(String[] args) {
        Connection con;
        Statement st;
        BufferedReader bufin;
        ResultSet rs,rs1;
        ResultSetMetaData rm;
        String namef;
    int numf,mark1f,mark2f,totalf,insch,pickch,numoffields,mark11f,mark22f;
        
        try
        {
           Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
            con = DriverManager.getConnection("jdbc:odbc:chan2");
con.setAutoCommit(false);
st = con.createStatement();           

            bufin = new BufferedReader(new InputStreamReader(System.in));
            Scanner scanner = new Scanner(System. in);
//String input = scanner. nextLine();
          
           
        
                System.out.println("Pick your option");
        System.out.println("-----------------");
                System.out.println("1. New Record Entry");
                System.out.println("2. Students Information Display");
                System.out.println("3. Information  Modification for a Student");
        System.out.println("4. Total Mark calculation for all Students");               
        System.out.println("5.  Grade A Students Records Deletion ");
        System.out.println("6.  Enquiry of a student ");               
        System.out.println("any other No  FOR RECORD NAVIGATION");
                pickch = Integer.parseInt(bufin.readLine());
switch(pickch)
{
case 1:
    do
            {
        System.out.println("Enter Name");
                namef = scanner. nextLine();               
        System.out.println("Enter Reg.No");
               numf = Integer.parseInt(bufin.readLine());
                System.out.println("Enter Mark1");
                mark1f= Integer.parseInt(bufin.readLine());
        System.out.println("Enter Mark2");
        mark2f= Integer.parseInt(bufin.readLine());
                st.execute("insert into table1(sname,sno,mark1,mark2) values('"+namef+"',"+numf+","+mark1f+","+mark2f+")");
                System.out.println("Data Entry Done");
                System.out.println(" do you want to Continue Insertion of records ? press no 0 to exit");
                insch = Integer.parseInt(bufin.readLine());
            }while(insch>0);
        break;

 case 2:
          
               rs = st.executeQuery("select * from table1");
               if(rs!=null)
                {
            rm = rs.getMetaData();
               numoffields = rm.getColumnCount();
                for(int i=1; i<=numoffields; i++)
               {
                   System.out.print(rm.getColumnName(i)+"\t\t");
               }
               System.out.println();
              
               while(rs.next())
               {
               for(int i=1; i<=numoffields; i++)
               {
                   System.out.print(rs.getString(i) +"\t\t");
               }
               System.out.println();
        }
}
else
System.out.println("No Record Details Available - Do Data Entry ");
               break;
case 3:
       
System.out.println("Enter Reg.No. for changing the contents:");
               numf = Integer.parseInt(bufin.readLine());
rs1=st.executeQuery("select * from table1 where sno="+numf);

rs1.next();// to set resultset pointer


       


               System.out.println("if u want to change the name then give the name else type N");
               namef = scanner.nextLine();
 System.out.println("if u want to change mark1 value  then give the the value else enter 0");
               mark11f = scanner.nextInt();
System.out.println("if u want to change mark2 value  then give the the value else enter 0");
               mark22f = scanner.nextInt();


    if (namef.equalsIgnoreCase("N"))

        {    
        namef=rs1.getString("sname");
        }
if (mark11f==0)
{
mark11f=Integer.parseInt(rs1.getString("mark1"));

}
if (mark22f==0)
{
mark22f=Integer.parseInt(rs1.getString("mark2"));
}
System.out.println(namef);
System.out.println(mark11f);
System.out.println(mark22f);        
st.executeUpdate("update table1 set sname='"+namef+"', mark1="+mark11f+", mark2="+mark22f+" , tot=mark1+mark2 where sno="+numf);
               con.setAutoCommit(true);
        System.out.println(" Record Modified with your selective values");
        

//*{
//System.out.println("Enter Name");
//                namef = scanner. nextLine();               
//        System.out.println("Enter Reg.No");
  //             numf = scanner.nextInt();
    //            System.out.println("Enter Mark1");
      //          mark11f= Integer.parseInt(bufin.readLine());
    //    System.out.println("Enter Mark2");
    //    mark22f= Integer.parseInt(bufin.readLine());          
        //    st.executeUpdate("update table1 set sname='"+namef+"', mark1="+mark11f+", mark2="+mark22f+" , tot=mark1+mark2 where sno="+numf);
          //     con.setAutoCommit(true);
        //System.out.println(" Record Modified");
//}


break;
case 4:       
   
int i=st.executeUpdate("update table1 set tot=mark1+mark2");
   
con.setAutoCommit(true);
   
       
            if(i != 0)
            {
                System.out.println("Records updated"+i);
            }
            else
            {
                System.out.println("No updation occured");
            }
        break;
case 5:       
        //System.out.println("Enter Reg.No to delete");
              // numf = Integer.parseInt(bufin.readLine());
    //int i1=st.executeUpdate("delete from  table1 where sno=2");
    int i1=st.executeUpdate("delete from  table1 where (mark1+mark2)/2<60");
    con.setAutoCommit(true);
    if(i1 != 0)
            {
                System.out.println("No. of records deleted = "+i1);
            }
            else
            {
                System.out.println("Record Deletion not occured ");
            }
        break;
case 6:
System.out.println("Enter  the Reg.No. to search :");
numf = Integer.parseInt(bufin.readLine());
rs1=st.executeQuery("select * from table1 where sno="+numf);

rs1.next();
rno=rs1.getRow();
namef=rs1.getString("sname");
int snumf=Integer.parseInt(rs1.getString("sno"));
mark11f=Integer.parseInt(rs1.getString("mark1"));
mark22f=Integer.parseInt(rs1.getString("mark2"));
int totf=Integer.parseInt(rs1.getString("tot"));
System.out.println("Name of the Student :\t"+namef);
System.out.println("Register No :\t\t"+snumf);
System.out.println("\t Subject Name \t\t\tMarks Scored");
System.out.println("\t LAB I\t..JAVA PROGRAMMING\t"+mark11f);
System.out.println("\t LAB II\t..VISUAL PROGRAMMING\t"+mark22f);
System.out.println("\tTOTAL MARKS\t\t:\t"+totf);
System.out.println("\tPERCENTAGE\t\t:\t"+(mark11f+mark22f)/2);


break;
default:            
               

st = con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_READ_ONLY);
          
rs1 = st.executeQuery("select * from table1");
rm = rs1.getMetaData();
 numoffields = rm.getColumnCount();
do
{
System.out.println("NAVIGATION AMONG RECORDS \n");
System.out.println(" F. Move First Record");
System.out.println(" L. Move Last Record");
System.out.println(" P. Move Previous Record");
System.out.println(" N. Move Next Record");
System.out.println(" S. Move Specific Record");
System.out.println(" n. Move  single Next Record");
System.out.println(" p. Move single Previous Record");
System.out.println("PRESS F/L/P/N/S/p/n");
String  nach =bufin.readLine();
switch(nach)
{
case "F":
System.out.println("FIRSRT RECORD");
rs1.first();
namef=rs1.getString("sname");
int snumf1=Integer.parseInt(rs1.getString("sno"));
mark11f=Integer.parseInt(rs1.getString("mark1"));
mark22f=Integer.parseInt(rs1.getString("mark2"));
int totf1=Integer.parseInt(rs1.getString("tot"));
System.out.println("Name of the Student :\t"+namef);
System.out.println("Register No :\t\t"+snumf1);
System.out.println("\t Subject Name \t\t\tMarks Scored");
System.out.println("\t LAB I\t..JAVA PROGRAMMING\t"+mark11f);
System.out.println("\t LAB II\t..VISUAL PROGRAMMING\t"+mark22f);
System.out.println("\tTOTAL MARKS\t\t:\t"+totf1);           

rs1.beforeFirst();              
break;
case "L":System.out.println("LAST RECORD");
                for( i=1; i<=numoffields; i++)
               {
                   System.out.print(rm.getColumnName(i)+"\t");
               }
               System.out.println();
              
               rs1.last();
              
               for( i=1; i<=numoffields; i++)
               {
                   System.out.print(rs1.getString(i) +"\t");
               }
               System.out.println(); rs1.afterLast();break;
case "N":System.out.println("NEXT RECORD");
while(rs1.next())
{

namef=rs1.getString("sname");
snumf1=Integer.parseInt(rs1.getString("sno"));
mark11f=Integer.parseInt(rs1.getString("mark1"));
mark22f=Integer.parseInt(rs1.getString("mark2"));
totf1=Integer.parseInt(rs1.getString("tot"));
System.out.println("Name of the Student :\t"+namef);
System.out.println("Register No :\t\t"+snumf1);
System.out.println("\t Subject Name \t\t\tMarks Scored");
System.out.println("\t LAB I\t..JAVA PROGRAMMING\t"+mark11f);
System.out.println("\t LAB II\t..VISUAL PROGRAMMING\t"+mark22f);
System.out.println("\tTOTAL MARKS\t\t:\t"+totf1); 
               System.out.println();
}
break;

case "S":System.out.println("Which Record No is Specific one");
         rno= scanner.nextInt();
rs1.absolute(rno);
System.out.println("NEEDED  RECORD");
                for( i=1; i<=numoffields; i++)
               {
                   System.out.print(rm.getColumnName(i)+"\t");
               }
                for( i=1; i<=numoffields; i++)
               {
                   System.out.print(rs1.getString(i) +"\t");
               }
               System.out.println();break;

case "n" :
try
{
rs1.next();
rno=rs1.getRow();
//rs1.absolute(rno);
System.out.println(rno);
System.out.println("Single NEXT RECORD");
                for( i=1; i<=numoffields; i++)
               {
                   System.out.print(rm.getColumnName(i)+"\t");
               }
                for( i=1; i<=numoffields; i++)
               {
                   System.out.print(rs1.getString(i) +"\t");
               }
               System.out.println();
}
catch(Exception e)
        {
            System.out.println("Reason : This is the Last Record :");
rs1.last();  
        for( i=1; i<=numoffields; i++)
               {
                   System.out.print(rm.getColumnName(i)+"\t");
               }
                for( i=1; i<=numoffields; i++)
               {
                   System.out.print(rs1.getString(i) +"\t");
               }
               System.out.println();     
}
break;
case "p":
try
{
rs1.previous();
rno=rs1.getRow();
System.out.println(rno);
//rs1.absolute(rno-1);
System.out.println("Single PREVIOUS RECORD");
                for( i=1; i<=numoffields; i++)
               {
                   System.out.print(rm.getColumnName(i)+"\t");
               }
                for( i=1; i<=numoffields; i++)
               {
                   System.out.print(rs1.getString(i) +"\t");
               }
               System.out.println();
}
catch(Exception e)
        {
            System.out.println("Reason : This is the First Record :");
rs1.first(); for( i=1; i<=numoffields; i++)
               {
                   System.out.print(rm.getColumnName(i)+"\t");
               }
                for( i=1; i<=numoffields; i++)
               {
                   System.out.print(rs1.getString(i) +"\t");
               }
               System.out.println(); 
    
}
break;

default:bufin.close();
        con.close();       
    System.exit(0);break;
}
System.out.println(" do you want to Continue navigation ? press no 0 to exit");
                insch = Integer.parseInt(bufin.readLine());
            }while(insch>0);       
 break;          
 }         
              
           
          
}
       
        catch(Exception e)
        {
            System.out.println("Error :"+e.getMessage());
        }
   
}
}
// Statement s=con.createStatement(RecordSet.Type_SCROLL_SENSITIVE,ResultSet.ConCUR_UPDATABLE/CONCUR_READ_ONLY));
// import java.ResultSet
//set path = C:\Program Files\Java\jdk1.7.0_51\bin
//javac