Thang Nguyen
Posts: 18
Nickname: thang
Registered: Apr, 2002
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Re: Read input
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Posted: Apr 30, 2002 11:19 AM
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/*I don't understand you needs very much but here is my simple code, you can try it out and see if it fixes your problem.
NOTE: To test the program, I try only 3 students, but you can increase this number as many as you want (replace number 3 in the arrays: name, mark1, mark2, mark3, avg...). You can round the highest and lowest mark to 2-decimal numbers by using Math.round(..); And maybe some modifications at FAIL, PASS, CREDIT to meet your ideas.
Hope this helps you out a bit. If it stil does not work, email me at intelteq@hotmail.com - Thang
*/
import java.io.*;
public class Class1
{
public static void main(String args[]) throws IOException
{
String []name = new String [3]; //student's name
double [] mark1 = new double[3]; //student's mark
double [] mark2 = new double[3];
double [] mark3 = new double[3];
BufferedReader input = new BufferedReader(new InputStreamReader(System.in));
for(int a =0; a <name.length; a++)
{
System.out.println("\nEnter data for student" + (a+1));
System.out.print("Enter Name:\t");
name[a] = input.readLine();
System.out.print("Enter mark1\t");
mark1[a] = new Double(input.readLine()).doubleValue();
System.out.print("Enter mark2:\t");
mark2[a] = new Double(input.readLine()).doubleValue();
System.out.print("Enter mark3:\t");
mark3[a] = new Double(input.readLine()).doubleValue();
}
double highestAvg, lowestAvg;
double avg[] = new double[3];
//calculate mark average
for (int a = 0; a < name.length; a++)
{
avg[a] = (mark1[a] + mark2[a] + mark3[a]) / 3;
}
//Find highest average
highestAvg = avg[0];
for (int a = 1; a < name.length; a++)
{
if (highestAvg < avg[a])
highestAvg = avg[a];
}
//find lowest average
lowestAvg = avg[0];
for (int a = 1; a < name.length; a++)
{
if (lowestAvg > avg[a])
lowestAvg = avg[a];
}
//print output
for (int a = 0; a< name.length; a++)
{
System.out.println
("\nMark average of student " + name[a] + "(# " +(a+1) +")");
System.out.println("Mark1 = " + mark1[a]);
System.out.println("Mark2 = " + mark2[a]);
System.out.println("Mark3 = " + mark3[a]);
System.out.println("Average =" + avg[a]);
if (avg[a] < 50)
System.out.println ("FAIL");
else if (avg[a] >=50 && avg[a] < 70)
System.out.println ("PASS");
else if (avg[a] >= 70 )
System.out.println ("CREDIT");
else
System.out.println ("DISTINCTION");
}
System.out.println("\nHighest mark in class: " + highestAvg);
System.out.println("Lowest mark in class: " + lowestAvg);
System.in.read();
}
} ///END of Class :~
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