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66 lines
1.8 KiB
66 lines
1.8 KiB
4 years ago
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package standarinputIO;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import java.util.ArrayList;
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/**
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*
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* @author anasf
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*/
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public class StandardInputIO {
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final static String endstr="000000"; //this variable ends the process
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static String AM="[0-9]{6}";
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static float average=0;
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static ArrayList<String> students = new ArrayList<String>();
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static int count=0;
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static String str;
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static boolean flag=true;
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static int size=0;
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static String temp;
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static String[] data;
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public static void main(String[] args) throws IOException {
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System.out.println("Give students ID and the grades in this way.Spacifically 'AM course1 grade1 course2 grade2... and press ENTER'");
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System.out.println("To end the process type-> 000000 and press ENTER");
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BufferedReader input = new BufferedReader(new InputStreamReader(System.in));
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// Reading data using readLine
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while(flag) {
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str=input.readLine();
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if(!str.startsWith(endstr)) {
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students.add(str);
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size++;
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}
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else {
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flag=false;
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}
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}
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System.out.println("The process of reading students' data finished");
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System.out.println("The calculation of average will start!");
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for(int i=0;i<size;i++) {
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temp=students.get(i);
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data=temp.split("[ \t]");
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for(int j=2;j<data.length;j=j+2)
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{
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// calculate the average
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average=average+Float.parseFloat(data[j]);
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count++;
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}
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average=average/count;
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System.out.println("Average of student "+data[0]+": "+average);
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average=0;
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count=0;
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}
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System.out.println("Reading of grades was completed successfully!");
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}
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}
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