This program is on displaying result of any class having 13 subjects. This BlueJ program can be considered as a project job for ICSE students. Stuudents have to appear in two semester examination, each semester having Unit1, Unit2 and Block examination. From the score, percentage of marks will be calculated and result will be displayed from top to bottom. Result of any individual student can also be accessed.
import java.io.*;
class Report
{
String name[]=new String[100];
String roll[]=new String[100];
int marks[][]=new int[100][9];
int std;
/* (unit1,unit2,block,total)*2 plus grand total*/
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
int i;
public void setMarks() throws IOException
{
System.out.println("How many students?:");
std=Integer.parseInt(br.readLine());
for(i=0;i< std;i++)
{
System.out.println("Enter Name of Student No " +(i+1) + ":");
name[i]=br.readLine();
System.out.println("Enter Roll No:");
roll[i]=br.readLine();
System.out.println("Semester 1");
sem1();
System.out.println("Semester 2");
sem2();
}
sort();
}
private void sem1() throws IOException
{
int m,n;
int d=0,d1=0;
System.out.println("Unit1");
for(m=0;m< 13;m++)
{
if(m==0)
System.out.println("Subject1:");
else if(m==1)
System.out.println("Subject2:");
else if(m==2)
System.out.println("Subject3:");
else if(m==3)
System.out.println("Subject4:");
else if(m==4)
System.out.println("Subject5:");
else if(m==5)
System.out.println("Subject6:");
else if(m==6)
System.out.println("Subject7:");
else if(m==7)
System.out.println("Subject8:");
else if(m==8)
System.out.println("Subject9:");
else if(m==9)
System.out.println("Subject10:");
else if(m==10)
System.out.println("Subject11:");
else if(m==11)
System.out.println("Subject12:");
else if(m==12)
System.out.println("Subject13:");
d=d+Integer.parseInt(br.readLine());
}
d1=d1+d;
marks[i][0]=d;
d=0;
System.out.println("Unit2");
for(m=0;m< 13;m++)
{
if(m==0)
System.out.println("Subject1:");
else if(m==1)
System.out.println("Subject2:");
else if(m==2)
System.out.println("Subject3:");
else if(m==3)
System.out.println("Subject4:");
else if(m==4)
System.out.println("Subject5:");
else if(m==5)
System.out.println("Subject6:");
else if(m==6)
System.out.println("Subject7:");
else if(m==7)
System.out.println("Subject8:");
else if(m==8)
System.out.println("Subject9:");
else if(m==9)
System.out.println("Subject10:");
else if(m==10)
System.out.println("Subject11:");
else if(m==11)
System.out.println("Subject12:");
else if(m==12)
System.out.println("Subject13:");
d=d+Integer.parseInt(br.readLine());
}
d1=d1+d;
marks[i][1]=d;
d=0;
System.out.println("Block");
for(m=0;m<13;m++)
{
if(m==0)
System.out.println("Subject1:");
else if(m==1)
System.out.println("Subject2:");
else if(m==2)
System.out.println("Subject3:");
else if(m==3)
System.out.println("Subject4:");
else if(m==4)
System.out.println("Subject5:");
else if(m==5)
System.out.println("Subject6:");
else if(m==6)
System.out.println("Subject7:");
else if(m==7)
System.out.println("Subject8:");
else if(m==8)
System.out.println("Subject9:");
else if(m==9)
System.out.println("Subject10:");
else if(m==10)
System.out.println("Subject11:");
else if(m==11)
System.out.println("Subject12:");
else if(m==12)
System.out.println("Subject13:");
d=d+Integer.parseInt(br.readLine());
}
d1=d1+d;
marks[i][2]=d;
marks[i][3]=d1;
}
private void sem2() throws IOException
{
int m,n;
int d=0,d1=0;
System.out.println("Unit1");
for(m=0;m< 13;m++)
{
if(m==0)
System.out.println("Subject1:");
else if(m==1)
System.out.println("Subject2:");
else if(m==2)
System.out.println("Subject3:");
else if(m==3)
System.out.println("Subject4:");
else if(m==4)
System.out.println("Subject5:");
else if(m==5)
System.out.println("Subject6:");
else if(m==6)
System.out.println("Subject7:");
else if(m==7)
System.out.println("Subject8:");
else if(m==8)
System.out.println("Subject9:");
else if(m==9)
System.out.println("Subject10:");
else if(m==10)
System.out.println("Subject11:");
else if(m==11)
System.out.println("Subject12:");
else if(m==12)
System.out.println("Subject13:");
d=d+Integer.parseInt(br.readLine());
}
d1=d1+d;
marks[i][4]=d;
d=0;
System.out.println("Unit2");
for(m=0;m<13;m++)
{
if(m==0)
System.out.println("Subject1:");
else if(m==1)
System.out.println("Subject2:");
else if(m==2)
System.out.println("Subject3:");
else if(m==3)
System.out.println("Subject4:");
else if(m==4)
System.out.println("Subject5:");
else if(m==5)
System.out.println("Subject6:");
else if(m==6)
System.out.println("Subject7:");
else if(m==7)
System.out.println("Subject8:");
else if(m==8)
System.out.println("Subject9:");
else if(m==9)
System.out.println("Subject10:");
else if(m==10)
System.out.println("Subject11:");
else if(m==11)
System.out.println("Subject12:");
else if(m==12)
System.out.println("Subject13:");
d=d+Integer.parseInt(br.readLine());
}
d1=d1+d;
marks[i][5]=d;
d=0;
System.out.println("Block");
for(m=0;m<13;m++)
{
if(m==0)
System.out.println("Subject1:");
else if(m==1)
System.out.println("Subject2:");
else if(m==2)
System.out.println("Subject3:");
else if(m==3)
System.out.println("Subject4:");
else if(m==4)
System.out.println("Subject5:");
else if(m==5)
System.out.println("Subject6:");
else if(m==6)
System.out.println("Subject7:");
else if(m==7)
System.out.println("Subject8:");
else if(m==8)
System.out.println("Subject9:");
else if(m==9)
System.out.println("Subject10:");
else if(m==10)
System.out.println("Subject11:");
else if(m==11)
System.out.println("Subject12:");
else if(m==12)
System.out.println("Subject13:");
d=d+Integer.parseInt(br.readLine());
}
d1=d1+d;
marks[i][6]=d;
marks[i][7]=d1;
marks[i][8]=marks[i][3]+marks[i][7];
}
public void showResult()
{
double d=0;
int j;
System.out.println("Name Roll Unit1 Unit2 Block Total Unit1 Unit2 Block Total Percentage");
for(i=0;i< std;i++)
{
System.out.print(name[i]+ " "+roll[i]);
for(j=0;j< 9;j++)
{
System.out.print(marks[i][j]+ " ");
}
d=marks[i][8]/2.0;
System.out.print(d);
System.out.println();
}
}
private void sort()
{
int j,temp;
String s;
for(i=0;i< std-1;i++)
{
for(j=i+1;j< std;j++)
{
if(marks[i][8]< marks[j][8])
{
s=name[i];
name[i]=name[j];
name[j]=s;
s=roll[i];
roll[i]=roll[j];
roll[j]=s;
temp=marks[i][0];
marks[i][0]=marks[j][0];
marks[j][0]=temp;
temp=marks[i][1];
marks[i][1]=marks[j][1];
marks[j][1]=temp;
temp=marks[i][2];
marks[i][2]=marks[j][2];
marks[j][2]=temp;
temp=marks[i][3];
marks[i][3]=marks[j][3];
marks[j][3]=temp;
temp=marks[i][4];
marks[i][4]=marks[j][4];
marks[j][4]=temp;
temp=marks[i][5];
marks[i][5]=marks[j][5];
marks[j][5]=temp;
temp=marks[i][6];
marks[i][6]=marks[j][6];
marks[j][6]=temp;
temp=marks[i][7];
marks[i][7]=marks[j][7];
marks[j][7]=temp;
temp=marks[i][8];
marks[i][8]=marks[j][8];
marks[j][8]=temp;
}
}
}
}
public void display(String str)
{
int j;
for(i=0;i< std;i++)
{
if(roll[i].equalsIgnoreCase(str))
{
System.out.print(name[i]+ " "+roll[i]);
for(j=0;j< 9;j++)
System.out.print(marks[i][j]+ " ");
break;
}
}
if(i==std)
System.out.println("Invalid Roll Number.");
}
public static void main(String args[])throws IOException
{
String ans="y";
String r;
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
Report ob=new Report();
ob.setMarks();
while(!ans.equalsIgnoreCase("n"))
{
System.out.println("\nEnter the Roll Number to display result:");
r=br.readLine();
ob.display(r);
System.out.println("\nAny more student:(y/n):");
ans=br.readLine();
ob.showResult();
}
}
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