Need help with my codes

[vesperia]

hi im a first year college student and im new to Java. And this is our first assignment, Create a program that will compute the average grade, equivalent and remarks of student using whileloop and dowhile loop. And here's what i've done so far:

package Whileloop;

public class yourGrades {

public float prelimGrades = 0.0F;
public float midtermGrades = 0.0F;
public float finalGrades = 0.0F;
public float averageGrades = 0.0F;
public double[] equivalent = new double[10];
public String[] remark = new String[10];


public void showAll() {

averageGrades = (prelimGrades + midtermGrades + finalGrades) / 3;
System.out.println("\nAverage grade: " + averageGrades);

equivalent[0] = 1;
equivalent[1] = 1.25;
equivalent[2] = 1.50;
equivalent[3] = 1.75;
equivalent[4] = 2;
equivalent[5] = 2.25;
equivalent[6] = 2.50;
equivalent[7] = 2.75;
equivalent[8] = 3;
equivalent[9] = 5;

remark[0] = "EXCELLENT";
remark[1] = "VERY GOOD";
remark[2] = "VERY GOOD";
remark[3] = "GOOD";
remark[4] = "GOOD";
remark[5] = "FAIR";
remark[6] = "FAIR";
remark[7] = "PASSING";
remark[8] = "PASSING";
remark[9] = "FAILED";

if (averageGrades >= 98 && averageGrades <= 100) {
System.out.println("Equivalent: " + equivalent[0]);
System.out.println("Remark: " + remark[0]);
} else if (averageGrades >= 96) {
System.out.println("Equivalent: " + equivalent[1]);
System.out.println("Remark: " + remark[1]);
} else if (averageGrades >= 93) {
System.out.println("Equivalent: " + equivalent[2]);
System.out.println("Remark: " + remark[2]);
} else if (averageGrades >= 90) {
System.out.println("Equivalent: " + equivalent[3]);
System.out.println("Remark: " + remark[3]);
} else if (averageGrades >= 87) {
System.out.println("Equivalent: " + equivalent[4]);
System.out.println("Remark: " + remark[4]);
} else if (averageGrades >= 84) {
System.out.println("Equivalent: " + equivalent[5]);
System.out.println("Remark: " + remark[5]);
} else if (averageGrades >= 81) {
System.out.println("Equivalent: " + equivalent[6]);
System.out.println("Remark: " + remark[6]);
} else if (averageGrades >= 78) {
System.out.println("Equivalent: " + equivalent[7]);
System.out.println("Remark: " + remark[7]);
} else if (averageGrades >= 75) {
System.out.println("Equivalent: " + equivalent[8]);
System.out.println("Remark: " + remark[8]);
} else if (averageGrades <= 74) {
System.out.println("Equivalent: " + equivalent[9]);
System.out.println("Remark: " + remark[9]);
}
}

}
__________________________________________________ ________________________________
package Whileloop;
import java.io.*;
public class yourGradesTest {



public static void main(String[] args) throws IOException {

BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));

yourGrades yg = new yourGrades();

int x = 1;
while (x < 5) {
x++;


System.out.print("\nEnter your Prelim Grades: ");
yg.prelimGrades = Float.parseFloat(reader.readLine());

System.out.print("Enter your Midterm Grades: ");
yg.midtermGrades = Float.parseFloat(reader.readLine());

System.out.print("Enter your Final Grades: ");
yg.finalGrades = Float.parseFloat(reader.readLine());

yg.showAll();
}

}
}
__________________________________________________ _________________________________
package DoWhileloop;

public class yourGrades1 {


public float prelimGrades = 0.0F;
public float midtermGrades = 0.0F;
public float finalGrades = 0.0F;
public float averageGrades = 0.0F;
public double[] equivalent = new double[10];
public String[] remark = new String[10];

public void showAll() {

averageGrades = (prelimGrades + midtermGrades + finalGrades) / 3;
System.out.println("\nAverage grade: " + averageGrades);

equivalent[0] = 1;
equivalent[1] = 1.25;
equivalent[2] = 1.50;
equivalent[3] = 1.75;
equivalent[4] = 2;
equivalent[5] = 2.25;
equivalent[6] = 2.50;
equivalent[7] = 2.75;
equivalent[8] = 3;
equivalent[9] = 5;

remark[0] = "EXCELLENT";
remark[1] = "VERY GOOD";
remark[2] = "VERY GOOD";
remark[3] = "GOOD";
remark[4] = "GOOD";
remark[5] = "FAIR";
remark[6] = "FAIR";
remark[7] = "PASSING";
remark[8] = "PASSING";
remark[9] = "FAILED";

if (averageGrades >= 98 && averageGrades <= 100) {
System.out.println("Equivalent: " + equivalent[0]);
System.out.println("Remark: " + remark[0]);
} else if (averageGrades >= 96) {
System.out.println("Equivalent: " + equivalent[1]);
System.out.println("Remark: " + remark[1]);
} else if (averageGrades >= 93) {
System.out.println("Equivalent: " + equivalent[2]);
System.out.println("Remark: " + remark[2]);
} else if (averageGrades >= 90) {
System.out.println("Equivalent: " + equivalent[3]);
System.out.println("Remark: " + remark[3]);
} else if (averageGrades >= 87) {
System.out.println("Equivalent: " + equivalent[4]);
System.out.println("Remark: " + remark[4]);
} else if (averageGrades >= 84) {
System.out.println("Equivalent: " + equivalent[5]);
System.out.println("Remark: " + remark[5]);
} else if (averageGrades >= 81) {
System.out.println("Equivalent: " + equivalent[6]);
System.out.println("Remark: " + remark[6]);
} else if (averageGrades >= 78) {
System.out.println("Equivalent: " + equivalent[7]);
System.out.println("Remark: " + remark[7]);
} else if (averageGrades >= 75) {
System.out.println("Equivalent: " + equivalent[8]);
System.out.println("Remark: " + remark[8]);
} else if (averageGrades <= 74) {
System.out.println("Equivalent: " + equivalent[9]);
System.out.println("Remark: " + remark[9]);
}
}
}
__________________________________________________ _________________________________

package DoWhileloop;
import java.io.*;
public class yourGrades1Test {


public static void main(String[] args) throws IOException {

BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));

yourGrades1 yg1 = new yourGrades1();

int x = 1;
do {
x++;


System.out.print("\nEnter your Prelim Grades: ");
yg1.prelimGrades = Float.parseFloat(reader.readLine());

System.out.print("Enter your Midterm Grades: ");
yg1.midtermGrades = Float.parseFloat(reader.readLine());

System.out.print("Enter your Final Grades: ");
yg1.finalGrades = Float.parseFloat(reader.readLine());

yg1.showAll();

} while (x < 5);
}
}


now my question is how can i make my codes more interesting like having a pop up box when asking to enter the name and the prelim, midterm, final grades? thank you very much !!!

[Norm]

Please wrap your code in code tags when posting it. See: BB Code List - Java Forums
Or use the # icon above the input box.

For popup/dialog boxes to get user input, see the JOptionPane class. There are many code samples on this forum if you do a Search.

[KevinWorkman]

now my question is how can i make my codes more interesting like having a pop up box when asking to enter the name and the prelim, midterm, final grades? thank you very much !!!

That's the spirit. Like Norm said, JOptionPane is going to be your friend here: How to Make Dialogs (The Java™ Tutorials > Creating a GUI With JFC/Swing > Using Swing Components)
You might also want to check out the API: Java Platform SE 6

[vesperia]

thank you so much