import java.awt.EventQueue;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.SwingConstants;
import java.awt.Font;
import javax.swing.JTextField;
import javax.swing.JButton;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class your name {

private JFrame frame;
private JTextField textField;
private JTextField textField_1;
private JTextField textField_2;
private JTextField textField_3;
private JTextField textField_4;
private JTextField textField_5;
private JTextField textField_6;
private JTextField textField_7;
private JTextField textField_8;
private JTextField textField_9;
private JTextField textField_10;
private JTextField textField_11;
private JTextField textField_12;
private JTextField textField_13;
private JTextField textField_14;
private JTextField textField_15;
private JTextField textField_16;
private JTextField textField_17;
private JTextField textField_18;
private JTextField textField_19;
private JTextField txtRecitation;
private JTextField txtReview;
private JTextField txtHomework;
private JTextField txtParticipation;
private JTextField txtQuizzes;
private JTextField txtPrelim;
private JTextField txtMidterm;
private JTextField txtFinals;
private JTextField txtResult;
private JTextField txtRemarks;

/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
your name window = new your name();
window.frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}

/**
* Create the application.
*/
public your name() {
initialize();
}
/**
* Initialize the contents of the frame.
*/
private void initialize() {
frame = new JFrame();
frame.setBounds(100, 100, 903, 518);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().setLayout(null);

JLabel lblNewLabel = new JLabel("CLASS RECORD");
lblNewLabel.setFont(new Font("Raleway", Font.BOLD, 12));
lblNewLabel.setHorizontalAlignment(SwingConstants.CENTER);
lblNewLabel.setBounds(392, 26, 100, 13);
frame.getContentPane().add(lblNewLabel);

JLabel lblNewLabel_1 = new JLabel("Recitation/Seatwork");
lblNewLabel_1.setFont(new Font("Raleway", Font.BOLD, 15));
lblNewLabel_1.setBounds(43, 89, 173, 26);
frame.getContentPane().add(lblNewLabel_1);

JLabel lblNewLabel_1_1 = new JLabel("Review Question");
lblNewLabel_1_1.setFont(new Font("Raleway", Font.BOLD, 15));
lblNewLabel_1_1.setBounds(43, 140, 173, 26);
frame.getContentPane().add(lblNewLabel_1_1);

JLabel lblNewLabel_1_3 = new JLabel("Participation");
lblNewLabel_1_3.setFont(new Font("Raleway", Font.BOLD, 15));
lblNewLabel_1_3.setBounds(43, 197, 122, 13);
frame.getContentPane().add(lblNewLabel_1_3);

JLabel lblNewLabel_1_4 = new JLabel("Quizzes");
lblNewLabel_1_4.setFont(new Font("Raleway", Font.BOLD, 15));
lblNewLabel_1_4.setBounds(42, 242, 85, 14);
frame.getContentPane().add(lblNewLabel_1_4);

JLabel lblNewLabel_1_5 = new JLabel("Major Exam");
lblNewLabel_1_5.setFont(new Font("Raleway", Font.BOLD, 15));
lblNewLabel_1_5.setBounds(43, 340, 100, 13);
frame.getContentPane().add(lblNewLabel_1_5);

JLabel lblNewLabel_2 = new JLabel("Homework");
lblNewLabel_2.setFont(new Font("Raleway", Font.BOLD, 15));
lblNewLabel_2.setBounds(43, 290, 85, 13);
frame.getContentPane().add(lblNewLabel_2);

textField = new JTextField();
textField.setBounds(254, 95, 96, 19);
frame.getContentPane().add(textField);
textField.setColumns(10);

textField_1 = new JTextField();
textField_1.setColumns(10);
textField_1.setBounds(254, 146, 96, 19);
frame.getContentPane().add(textField_1);

textField_2 = new JTextField();
textField_2.setColumns(10);
textField_2.setBounds(254, 196, 96, 19);
frame.getContentPane().add(textField_2);

textField_3 = new JTextField();
textField_3.setColumns(10);
textField_3.setBounds(254, 242, 96, 19);
frame.getContentPane().add(textField_3);

textField_4 = new JTextField();
textField_4.setColumns(10);
textField_4.setBounds(254, 289, 96, 19);
frame.getContentPane().add(textField_4);

textField_5 = new JTextField();
textField_5.setColumns(10);
textField_5.setBounds(254, 339, 96, 19);
frame.getContentPane().add(textField_5);

textField_6 = new JTextField();
textField_6.setColumns(10);
textField_6.setBounds(392, 95, 96, 19);
frame.getContentPane().add(textField_6);

textField_7 = new JTextField();
textField_7.setColumns(10);
textField_7.setBounds(392, 146, 96, 19);
frame.getContentPane().add(textField_7);

textField_8 = new JTextField();
textField_8.setColumns(10);
textField_8.setBounds(392, 196, 96, 19);
frame.getContentPane().add(textField_8);

textField_9 = new JTextField();
textField_9.setColumns(10);
textField_9.setBounds(392, 242, 96, 19);
frame.getContentPane().add(textField_9);

textField_10 = new JTextField();
textField_10.setColumns(10);
textField_10.setBounds(392, 289, 96, 19);
frame.getContentPane().add(textField_10);

textField_11 = new JTextField();
textField_11.setColumns(10);
textField_11.setBounds(392, 339, 96, 19);
frame.getContentPane().add(textField_11);

textField_12 = new JTextField();
textField_12.setColumns(10);
textField_12.setBounds(538, 95, 96, 19);
frame.getContentPane().add(textField_12);

textField_13 = new JTextField();
textField_13.setColumns(10);
textField_13.setBounds(538, 146, 96, 19);
frame.getContentPane().add(textField_13);

textField_14 = new JTextField();
textField_14.setColumns(10);
textField_14.setBounds(538, 196, 96, 19);
frame.getContentPane().add(textField_14);

textField_15 = new JTextField();
textField_15.setColumns(10);
textField_15.setBounds(538, 242, 96, 19);
frame.getContentPane().add(textField_15);

textField_16 = new JTextField();
textField_16.setColumns(10);
textField_16.setBounds(538, 289, 96, 19);
frame.getContentPane().add(textField_16);

textField_17 = new JTextField();
textField_17.setColumns(10);
textField_17.setBounds(538, 339, 96, 19);
frame.getContentPane().add(textField_17);

JButton btnNewButton = new JButton("Calculate");
btnNewButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
}
});
btnNewButton.setFont(new Font("Raleway", Font.BOLD, 12));
btnNewButton.setBounds(83, 405, 122, 19);
frame.getContentPane().add(btnNewButton);

btnNewButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
double recitation = Double.parseDouble(txtRecitation.getText());
double review = Double.parseDouble(txtReview.getText());
double homework = Double.parseDouble(txtHomework.getText());
double participation = Double.parseDouble(txtParticipation.getText());
double quizzes = Double.parseDouble(txtQuizzes.getText());
double prelim = Double.parseDouble(txtPrelim.getText());
double midterm = Double.parseDouble(txtMidterm.getText());
double finals = Double.parseDouble(txtFinals.getText());

double classStanding = (recitation*0.1)+(review*0.3)+(homework*0.1)+(participation*0.1)+(quizzes*0.4);
double termGrade = classStanding*2 + (prelim+midterm+finals)/3;
double general_average = (prelim*0.3)+(midterm*0.3)+(finals*0.4);
txtResult.setText("Class Standing: " + classStanding + "\nTerm Grade: " + termGrade + "\ngeneral_Average: "+ general_average);

if(general_average <=75) {
txtRemarks.setText("Passed");
}else {
txtRemarks.setText("Failed");
}

}
});
JButton btnClear = new JButton("Clear");
btnClear.setFont(new Font("Raleway", Font.BOLD, 12));
btnClear.setBounds(228, 405, 122, 19);
frame.getContentPane().add(btnClear);

btnClear.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
textField.setText("");
textField_1.setText("");
textField_2.setText("");
textField_3.setText("");
textField_4.setText("");
textField_5.setText("");
textField_6.setText("");
textField_7.setText("");
textField_8.setText("");
textField_9.setText("");
textField_10.setText("");
textField_11.setText("");
textField_12.setText("");
textField_13.setText("");
textField_14.setText("");
textField_15.setText("");
textField_16.setText("");
textField_17.setText("");
textField_18.setText("");
textField_19.setText("");
txtRecitation.setText("");
txtReview.setText("");
txtHomework.setText("");
txtParticipation.setText("");
txtQuizzes.setText("");
txtPrelim.setText("");
txtMidterm.setText("");
txtFinals.setText("");
txtResult.setText("");
txtRemarks.setText("");

}
});

JLabel lblNewLabel_3 = new JLabel("Prelim");
lblNewLabel_3.setFont(new Font("Raleway", Font.BOLD, 12));
lblNewLabel_3.setHorizontalAlignment(SwingConstants.CENTER);
lblNewLabel_3.setBounds(277, 60, 45, 13);
frame.getContentPane().add(lblNewLabel_3);

JLabel lblNewLabel_3_1 = new JLabel("Midterm");
lblNewLabel_3_1.setFont(new Font("Raleway", Font.BOLD, 12));
lblNewLabel_3_1.setHorizontalAlignment(SwingConstants.CENTER);
lblNewLabel_3_1.setBounds(414, 60, 50, 13);
frame.getContentPane().add(lblNewLabel_3_1);

JLabel lblNewLabel_3_2 = new JLabel("Final");
lblNewLabel_3_2.setFont(new Font("Raleway", Font.BOLD, 12));
lblNewLabel_3_2.setHorizontalAlignment(SwingConstants.CENTER);
lblNewLabel_3_2.setBounds(559, 60, 45, 13);
frame.getContentPane().add(lblNewLabel_3_2);

textField_18 = new JTextField();
textField_18.setBounds(538, 406, 96, 19);
frame.getContentPane().add(textField_18);
textField_18.setColumns(10);

textField_19 = new JTextField();
textField_19.setColumns(10);
textField_19.setBounds(672, 406, 96, 19);
frame.getContentPane().add(textField_19);

JLabel lblNewLabel_4 = new JLabel("Results");
lblNewLabel_4.setFont(new Font("Raleway", Font.BOLD, 12));
lblNewLabel_4.setBounds(559, 435, 63, 13);
frame.getContentPane().add(lblNewLabel_4);

JLabel lblNewLabel_4_1 = new JLabel("Remarks");
lblNewLabel_4_1.setFont(new Font("Raleway", Font.BOLD, 12));
lblNewLabel_4_1.setBounds(694, 435, 63, 13);
frame.getContentPane().add(lblNewLabel_4_1);

JButton btnNewButton_1 = new JButton("Exit");
btnNewButton_1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.exit(0);
}
});
btnNewButton_1.setFont(new Font("Raleway", Font.BOLD, 12));
btnNewButton_1.setBounds(368, 405, 85, 19);
frame.getContentPane().add(btnNewButton_1);

}
}

Please help the results are not showing

You're kidding, right?

Better learn how to use your interactive debugger.
Step through the code and examine values.
Review I/O.