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How to make an program that colud create user based numbers of jtextfield and jlabels in jframe ,though it is out topic but help
,I am making an simple java swing program that could ask user to enter the number of text field and jlabels to create and that would be created in the another jframe .I tried caret listener but was facing problem ,so please help me to achieve
2 odpowiedzi
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import javax.swing.*;
import java.awt.event.*;
public class TextFieldExample implements ActionListener{
JTextField tf1,tf2,tf3;
JButton b1,b2;
TextFieldExample(){
JFrame f= new JFrame();
tf1=new JTextField();
tf1.setBounds(50,50,150,20);
tf2=new JTextField();
tf2.setBounds(50,100,150,20);
tf3=new JTextField();
tf3.setBounds(50,150,150,20);
tf3.setEditable(false);
b1=new JButton("+");
b1.setBounds(50,200,50,50);
b2=new JButton("-");
b2.setBounds(120,200,50,50);
b1.addActionListener(this);
b2.addActionListener(this);
f.add(tf1);
f.add(tf2);
f.add(tf3);
f.add(b1);
f.add(b2);
f.setSize(300,300);
f.setLayout(null);
f.setVisible(true);
}
public void actionPerformed(ActionEvent e)
{
String s1=tf1.getText();
String s2=tf2.getText();
int a=Integer.parseInt(s1);
int b=Integer.parseInt(s2);
int c=0;
if(e.getSource()==b1){
c=a+b;
}else if(e.getSource()==b2){
c=a-b;
}
String result=String.valueOf(c);
tf3.setText(result);
}
public static void main(String[] args) {
new TextFieldExample();
} }
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not exactly,,that I asked ,probably you must see the question that I asked