Suela Smith

Where in javac lin should i add "deprecation"

Hi erveryone

anyone can halp me out with this compile error

Error:

java uses or overide a deprecated API

Recompile with -deprecation for details

any help would be greatly apriciated

Suela

Hi everyone

I got a JButton, JTextField, and JTextArea. I want to add the text from JTextField to JTextArea, and all this to happen when i click the JButton


thanks in advance for any help

hi Michael and CR
thankyou both for your replay, they were very helpful

thanks again
SUE

Hi everyone
I need help with ActionListener, I have a JFrame which has some JLabels, some TextField, four JButtons, and a JTextArea. I want to add on the JTextArea what i write in the JTextField, so when i click the button Add the text goes to the textarea.

Thanks in advance

COde:

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

public class AddPersonsData extends JFrame {
public AddPersonsData(){
super("Add Persons Data");
setSize(790,270);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Container contentPane = getContentPane();
JPanel panel1 = new JPanel(new FlowLayout());

JButton button1 = new JButton("Load");
panel1.add(button1);
JButton button2 = new JButton("Save");
panel1.add(button2);
JButton button3 = new JButton("Clear");
panel1.add(button3);
JButton button4 = new JButton("Exit");
panel1.add(button4);
contentPane.add("South", panel1);

JPanel panel2 = new JPanel(new GridLayout(7, 2));

panel2.add(new JLabel("First Name", JLabel.RIGHT));
panel2.add(new JTextField(20));
panel2.add(new JLabel("Middle Name",JLabel.RIGHT));
panel2.add(new JTextField(20));
panel2.add(new JLabel("Last Name", JLabel.RIGHT));
panel2.add(new JTextField(20));
panel2.add(new JLabel("Gender", JLabel.RIGHT));
panel2.add(new JTextField(20));
panel2.add(new JLabel("Birth Year", JLabel.RIGHT));
panel2.add(new JTextField(20));
panel2.add(new JLabel("Birth Month", JLabel.RIGHT));
panel2.add(new JTextField(20));
panel2.add(new JLabel("Birth Day", JLabel.RIGHT));
panel2.add(new JTextField(20));
contentPane.add("Center", panel2);

JPanel panel3 = new JPanel();
panel3.add(new JScrollPane(new JTextArea(11, 20)));
contentPane.add("West", panel3);

} //end constructor method
public static void main(String[] args) {
// perform any initialization
AddPersonsData apd=new AddPersonsData();
apd.setVisible(true);
}
}

Thank you Garrett
Now every thing works fine

hi everyone
I got a syntax error:
any help is greatly apriciate

Code:
import java.util.*;
import java.io.*;

public class Person implements Serializable {
private String first_name = null;
private String middle_name = null;
private String last_name = null;
private Calendar birthday = null;
private String gender = null;

public static final String MALE = "Male";
public static final String FEMALE = "Female";

public Person(String f_name, String m_name, String l_name, int dob_year, int dob_month, int dob_day,String gender){

first_name = f_name;
middle_name = m_name;
last_name = l_name;
this.gender = gender;

birthday = Calendar.getInstance();
birthday.set(dob_year, dob_month, dob_day);
}

public int getAge(){
Calendar today = Calendar.getInstance();
int now = today.get(Calendar.YEAR);
int then = birthday.get(Calendar.YEAR);
return (now - then);
}

public String getFullName(){ return (first_name + " " + middle_name + " " + lastname);

public String getFirstName(){ return first_name;}
public void setFirstName{String f_name) ( first_name = f_name

public String getMiddleName(){ return middle_name;}
public void setMiddleName{String m_name) ( middle_name = m_name

public String getLastName(){ return last_name;}
public void setLastName{String l_name) ( last_name = l_name

public String getNameAndAge(){ return (getFullName() + " " + getAge());

public String getGender(){ return gender;}
public void setGender(String gender){ this.gender = gender; }

public void setBirthday(int year, int month, int day){ birthday.set(year, month, day);}

public String toString(){
return.this.getFullName() + " " + gender + " " + birthday.get(Calendar.DATE) + "/" + birthday.get(Calendar.MONTH) + "/" + birthday.get(Calendar.YEAR);
}

public boolen equals(Object o){
if(o == null) return false;
boolen is_equal = false;
if(o instanceof Person){
if(this.first_name.equals(((Person)o).first_name) &&
this.middle_name.equals(((Person)o).middle_name) && this.gender.equals(((Person)o).gender) &&
this.birthday.get(Calendar.YEAR) == ((Person)o).birthday.get(Calendar.YEAR)) &&
this.birthday.get(Calendar.MONTH) == ((Person)o).birthday.get(Calendar.MONTH)) &&
this.birthday.get(Calendar.DATE) == ((Person)o).birthday.get(Calendar.DATA)) ){
is_equal = true;
}
}
return is_equal;
}
} //end Person class

Errors:
34: illegal start of expression
public String getFirstName(){ return first_name;}
68: ";" expected
} //end Person class

Hi everyone
any idea why i got this runtime errors

code:

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

public class Exercise extends JFrame {

public Exercise(){
super("Exercise3");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
createGUI();
}

public void createGUI(){
JLabel label1 = null;
JLabel label2 = null;
JLabel label3 = null;
JLabel label4 = null;
JLabel label5 = null;

JTextField textfield1 = null;
JTextField textfield2 = null;
JTextField textfield3 = null;
JTextField textfield4 = null;
JTextField textfield5 = null;

JButton jbutton1 = null;
JButton jbutton2 = null;
JButton jbutton3 = null;
JButton jbutton4 = null;

JPanel jpanel1 = null;
JPanel jpanel2 = null;

jpanel1 = new JPanel();
jpanel2 = new JPanel();

label1 = new JLabel("First Name");
textfield1 =new JTextField("20");

label2 = new JLabel("Middle Name");
textfield1 =new JTextField("20");

label1 = new JLabel("Last Name");
textfield1 =new JTextField("20");

label1 = new JLabel("Gender");
textfield1 =new JTextField("20");

label1 = new JLabel("Age");
textfield1 =new JTextField("20");

jbutton1 = new JButton("Load");
jbutton2 = new JButton("Save");
jbutton3 = new JButton("Clear");
jbutton4 = new JButton("Next");

jpanel1.setLayout(new GridLayout(5,2,0,0));
jpanel1.add(label1);
jpanel1.add(textfield1);
jpanel1.add(label2);
jpanel1.add(textfield2);
jpanel1.add(label3);
jpanel1.add(textfield3);
jpanel1.add(label4);
jpanel1.add(textfield4);
jpanel1.add(label5);
jpanel1.add(textfield5);

jpanel2.setLayout(new GridLayout(3,3,0,0));
jpanel2.add(jbutton1);
jpanel2.add(jbutton2);
jpanel2.add(jbutton3);
jpanel2.add(jbutton4);

this.getContentPane().setLayout(new GridLayout(3,1,0,0));
this.getContentPane().add(jpanel1);
this.getContentPane().add(jpanel2);

this.setSize(400, 300);
this.setLocation(200, 200);
this.show();

}

public static void main(String[] arg) {
JFrame frame = new Exercise();
frame.pack();
frame.setVisible(true);
}
}

run time errors:

Exeption in thread "main" java.lang.NullPointerExeption
at java.awt.Container.addImpl<Uknown Source>
at java.awt.Container.add<Uknown Source>
at Exercise.createGUI<Exercise.java:60>
at Exercise.<int><Exercise.java:9>
at Exercise.main<Exercise.java:85>

thnak you in advance

Suela

thanks Craig for your help
I need your help again becouse i still get an error
error:

";" expected
al = ActionLstener(){

when i replaced "{" with ";" i got more erors

thanks again

Hi, I want to create a JFrame that has JLabels, JTextArea, JTextField, and JButtons, i have this code but when i try to cmpile i got an error.

code:
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;


public class PersonGUI extends JFrame {{

JPanel panel1 = null;
JPanel panel2 = null;
JPanel panel2a = null;
JPanel panel2b = null;
JPanel panel2c = null;
JPanel panel2a1 = null;

JLabel label1 = null;
JLabel label2 = null;
JLabel label3 = null;
JLabel label4 = null;
JLabel label5 = null;

JTextField textfield1 = null;
JTextField textfield2 = null;
JTextField textfield3 = null;
JTextField textfield4 = null;
JTextField textfield5 = null;

JTextArea textarea1 = null;

JButton button1 = null;
JButton button2 = null;
JButton button3 = null;
JButton button4 = null;


panel1 = new JPanel();
panel2 = new JPanel();
panel2a = new JPanel();
panel2b = new JPanel();
panel2c = new JPanel();
panel2a1 = new JPanel();

label1 = new JLabel("First Name");
label2 = new JLabel("Last Name");
label3 = new JLabel("Middle Name");
label4 = new JLabel("Age");
label5 = new JLabel("Gender");

textfield1 = new JTextField(20);
textfield2 = new JTextField(20);
textfield3 = new JTextField(20);
textfield4 = new JTextField(20);
textfield5 = new JTextField(20);

textarea1 = new JTextArea(50, 20);
JScrollPane scrollpane = new JScrollPane(textarea1);

button1 = new JButton("Save");
button1.addActionListener(al);
button2 = new JButton("Next");
button2.addActionListener(al);
button3 = new JButton("Load");
button3.addActionListener(al);
button4 = new JButton("Clear");
button4.addActionListener(al);

panel2.setLayout(new GridLayout(3, 1, 0, 0));

panel2a.setLayout(new GridLayout(2, 1, 0, 0));
panel1.add(scrollpane);

panel2a1.add(label1);
panel2a1.add(textfield1);

panel2a1.add(label2);
panel2a1.add(textfield2);

panel2a1.add(label3);
panel2a1.add(textfield3);

panel2a1.add(label4);
panel2a1.add(textfield4);

panel2a1.add(label5);
panel2a1.add(textfield5);

panel2.add(panel2a);

panel2.add(panel2b);
panel2.add(panel2c);

this.getContentPane().setLayout(new GridLayout(2, 1, 0, 0));
this.getContentPane().add(panel1);
this.getContentPane().add(panel2);
this.setSize(800,600);
this.setLocation(200,200);
this.pack();
this.setVisible(true);
}
}
errors:
cannot resolve symbol
variable al
button1.addActionListener(al);

Ty in advance for ur help

Hi everyone
I'm trying to build a JFrame that includes JPanels, JLabels, JButton, and JTextArea; I don't know why i get an error when i try to compile the code

code:

private JPanele panel1 = null;
private JPanele panel2 = null;
private JPanele panel2a = null;
private JPanele panel2b = null;
private JPanele panel2c = null;
private JPanele panel2a1 = null;

private JLabel label1 = null;
private JLabel label2 = null;
private JLabel label3 = null;
private Jlabel label4 = null;
private JLabel label5 = null;

private JTextField textfield1 = null;
private JTextField textfield2 = null;
private JTextField textfield3 = null;
private JTextField textfield4 = null;
private JTextField textfield5 = null;

private JTextArea textarea1 = null;

private JButton button1 = null;
private JButton button2 = null;
private JButton button3 = null;
private JButton button4 = null;


panel1 = new JPanel();
panel2 = new JPanel();
panel2a = new JPanel();
panel2b = new JPanel();
panel2c = new JPanel();
panel2a1 = new JPanel();

label1 = new JLabel("First Name");
label2 = new JLabel("Last Name");
label3 = new JLabel("Middle Name");
label4 = new JLabel("Age");
label5 = new JLabel("Gender");

textfield1 = new JTextField(20);
textfield2 = new JTextField(20);
textfield3 = new JTextField(20);
textfield4 = new JTextField(20);
textfield5 = new JTextField(20);

textarea1 = new JTextArea(50, 20);
JScrollPane scrollpane = new JScrollPane(textarea1);

button1 = new JButton("Save");
button1.addActionListener(al);
button2 = new JButton("Next");
button2.addActionListener(al);
button3 = new JButton("Load");
button3.addActionListener(al);
button4 = new JButton("Clear");
button4.addActionListener(al);

panel2.setLayout(new GridLayout(3. 1, 0, 0));

panel2a.setLayout(new GridLayout(2. 1, 0, 0));
panel1.add(scrollpane);

panel2a1.add(label1);
panel2a1.add(textfield1);

panel2a1.add(label2);
panel2a1.add(textfield2);

panel2a1.add(label3);
panel2a1.add(textfield3);

panel2a1.add(label4);
panel2a1.add(textfield4);

panel2a1.add(label5);
panel2a1.add(textfield5);

panel2.add(panel2a);
panel2.add(panel2b);
panel2.add(panle2c);

this getContentPane().setLayout(new GridLayout(2, 1, 0, 0);
this.getContentPane().add(panel1);
this.getContentPane().add(panel2);
this.setSize(800,600);
this.setLocation(200,200);
this.pack();
this.setVisible(true);
}//end constructor

Error:
illegal start of expresion
private JPanel panel1 = null;

any help is greatly appriciated