Write a java program to calculate students average test scores and their grades.
ID: 3857275 • Letter: W
Question
Write a java program to calculate students average test scores and their grades. You may assume the following data
Johnson 85 83 77 91 76
Aniston 80 90 95 93 48
Cooper 78 81 11 90 73
Gupta 92 83 30 69 87
Blair 23 45 96 38 59
Clark 60 85 45 39 67
Kennedy 77 31 52 74 83
Bronson 93 94 89 77 97
Sunny 79 85 28 93 82
Smith 85 72 49 75 63
Use three arrays: a one-dimensional array to store the student names, a (parallel) two dimensional
array to store the test score, and a parallel one-dimensional array to store
grades. Your program must contain at least the following methods: a method to read
and store data into two arrays, a method to calculate the average test score and grade
and a method to output the results. Have your program also output the class average.
Grade Calculation to be computed as follows
Marks
Grade
85-100
A
75-84
B
65-74
C
50-64
D
<50
F
code optimization: no unnecessary assignments of variables,calculations,parameteres and loops.
show sample output screenshot.Descriptive block and inline comments include.
Thanks in advance
Marks
Grade
85-100
A
75-84
B
65-74
C
50-64
D
<50
F
Explanation / Answer
Answer
import java.util.*;
import java.lang.*;
import java.io.*;
class ClassScore
{
public static void main (String[] args) throws java.lang.Exception
{
String name[]=new String[10];
int testScore[][]=new int[10][5];
char grade[]=new char[10];
input(name,testScore);
calculate(testScore,grade);
output(name,testScore,grade);
}
public static void input(String []name,int [][]testScore)
{
int i,j;
Scanner scan = new Scanner(System.in);
for(i=0;i<10;i++)
{
System.out.println("Enter Student "+(i+1)+" Name : ");
name[i]=scan.next();
System.out.println("Enter Student "+(i+1)+" Marks : ");
for(j=0;j<5;j++)
{
testScore[i][j]=scan.nextInt();
}
}
}
public static void calculate(int [][]testScore,char []grade)
{
int i,j;
for(i=0;i<10;i++)
{
int total=0,avg;
for(j=0;j<5;j++)
{
total+=testScore[i][j];
}
avg=total/5;
if(avg>=85&&avg<=100)
grade[i]='A';
else if(avg>=75&&avg<=84)
grade[i]='B';
else if(avg>=65&&avg<=74)
grade[i]='C';
else if(avg>=50&&avg<=64)
grade[i]='D';
else if(avg<50)
grade[i]='F';
total=0;
avg=0;
}
}
public static void output(String []name,int [][]testScore,char []grade)
{
int i,j;
System.out.println(" Name Marks Grade");
for(i=0;i<10;i++)
{
System.out.print(" "+name[i]+" ");
for(j=0;j<5;j++)
{
System.out.print(" "+testScore[i][j]);
}
System.out.print(" "+grade[i]);
}
}
}
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