Add color to background but I can't labels or textfields

print("public static void main(String[] args)
{
    JFrame f = new JFrame();
    SchoolOption f1 = new SchoolOption();
    Color c = new Color(128,0,0);
    Container con = f.getContentPane();
    con.setBackground(c);
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.setSize(400, 120);
    f.setTitle("Bloomfield College Student Registration System ");
    f.setResizable(false);
    f.setLocationRelativeTo(null);
    f.setVisible(true);
}

}");

For label you need to create and initialize the JLabel class object and add it to container. Inorder to do that you need to import javax.swing.* So the code must contain the following lines to add label and text field JLabel l1=new JLabel("Enter name"); JTextField tf1=new JTextField(10); con.add(l1); con.add(tf1);

I am very new to Java, I followed your instruction and this is what I came up with, am I missing something?

print("{
    JFrame f = new JFrame();
    JLabel l1 = new JLabel();
    JTextField tf1 = new JTextField ();

    SchoolOption f1 = new SchoolOption();

    Color c = new Color(128,0,0);
    Container con = f.getContentPane();

    con.setBackground(c);
    con.add(l1);
    con.add(tf1);
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.setSize(400, 120);
    f.setTitle("Bloomfield College Student Registration System");
    f.setResizable(false);
    f.setLocationRelativeTo(null);
    f.setVisible(true);
    l1.setVisible(true);
    //tf1.setVisible(true)

}");

It has white background now instead of Maroon

import java.awt.*;
import javax.swing.*;

class Test{
    public static void main(String[] args){
    JFrame f = new JFrame();
    JLabel l1 = new JLabel("Name: ");
    JTextField tf1 = new JTextField ();
    f.setLayout(null);
    l1.setBounds(10,10,100,20);
    tf1.setBounds(120,10,120,20);
    SchoolOption f1 = new SchoolOption();
    f.add(l1);
    f.add(tf1);
    Color c = new Color(128,0,0);
    Container con = f.getContentPane();

    con.setBackground(c);

    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.setSize(400, 120);
    f.setTitle("Bloomfield College Student Registration System");
    f.setResizable(false);
    f.setLocationRelativeTo(null);
    f.setVisible(true);
    l1.setVisible(true);
   }
}

import java.awt.*;
import javax.swing.*;

class Test{
    public static void main(String[] args){
    JFrame f = new JFrame();
    JLabel l1 = new JLabel("Name: ");
    JTextField tf1 = new JTextField ();
    f.setLayout(null);
    l1.setBounds(10,10,100,20);
    tf1.setBounds(120,10,120,20);
    SchoolOption f1 = new SchoolOption();
    f.add(l1);
    f.add(tf1);
    Color c = new Color(128,0,0);
    Container con = f.getContentPane();

    con.setBackground(c);

    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.setSize(400, 120);
    f.setTitle("Bloomfield College Student Registration System");
    f.setResizable(false);
    f.setLocationRelativeTo(null);
    f.setVisible(true);
    l1.setVisible(true);
   }
}

import java.awt.*;
import javax.swing.*;

class Test{
    public static void main(String[] args){
    JFrame f = new JFrame();
    JLabel l1 = new JLabel("Name: ");
    JTextField tf1 = new JTextField ();
    f.setLayout(null);
    l1.setBounds(10,10,100,20);
    tf1.setBounds(120,10,120,20);
    SchoolOption f1 = new SchoolOption();
    f.add(l1);
    f.add(tf1);
    Color c = new Color(128,0,0);
    Container con = f.getContentPane();

    con.setBackground(c);

    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.setSize(400, 120);
    f.setTitle("Bloomfield College Student Registration System");
    f.setResizable(false);
    f.setLocationRelativeTo(null);
    f.setVisible(true);
    l1.setVisible(true);
   }
}

import java.awt.*;
import javax.swing.*;

class Test{
    public static void main(String[] args){
    JFrame f = new JFrame();
    JLabel l1 = new JLabel("Name: ");
    JTextField tf1 = new JTextField ();
    f.setLayout(null);
    l1.setBounds(10,10,100,20);
    tf1.setBounds(120,10,120,20);
    SchoolOption f1 = new SchoolOption();
    f.add(l1);
    f.add(tf1);
    Color c = new Color(128,0,0);
    Container con = f.getContentPane();

    con.setBackground(c);

    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.setSize(400, 120);
    f.setTitle("Bloomfield College Student Registration System");
    f.setResizable(false);
    f.setLocationRelativeTo(null);
    f.setVisible(true);
    l1.setVisible(true);
   }
}