Share on Google+Share on Google+

sarthak
error
1 Answer(s)      6 years and 8 months ago
Posted in : Java Beginners
import java.awt.*;
import java.awt.event.*;
class Sum implements ActionListner
{
Frame f ;
button b ;
Text Feildtf,tf1,tf2;
public Sum()
{
f = newFrame("aaa");

b = newButton("Sum");

b.AddactionListner (this);

tf = new TextFeild ();
tf1 = new TextFeild ();
tf2 = new TextFeild();


f.add(tf);
f.add(tf1);
f.add(tf2);
f.add(b);


f.setLayout(new FlowLayout());
f.setSize(400,400);
f.setVisiable(true);

}
public void actionPerformed (ActionEvent e)
{
String s1 = tf.getText();
String s2 = tf1. getText();

int n1 = integer.passesint(s1);

int n2 = integer.passesint(s2);

int n3 = n1+n2;


tf2.setText(String.valueof(n3));
Float f = Float.valueof(s1);
float f1 = f.Floatvalue();
}
public static void main(String ...s)
{
new Sum();
}
}

Ads

View Answers

August 6, 2010 at 11:07 AM


Hi Friend,

We have modified your code.

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
class Sum implements ActionListener
{
Frame f ;
Button b ;
TextField tf,tf1,tf2;
public Sum()
{
f = new Frame("aaa");
b = new Button("Sum");

b.addActionListener(this);

tf = new TextField(20);
tf1 = new TextField(20);
tf2 = new TextField(20);


f.add(tf);
f.add(tf1);
f.add(tf2);
f.add(b);


f.setLayout(new FlowLayout());
f.setSize(200,150);
f.setVisible(true);

}
public void actionPerformed (ActionEvent e){
String s1 = tf.getText();
String s2 = tf1. getText();

int n1 = Integer.parseInt(s1);
int n2 = Integer.parseInt(s2);
int n3 = n1+n2;


tf2.setText(Integer.toString(n3));
}
public static void main(String ...s)
{
new Sum();
}
}

Thanks









Related Tutorials/Questions & Answers:
error
error  while iam compiling iam getting expected error
Error-
Error-   Hello, I would like to know about XSD file. I try to print XML file but I am getting error SAXException-- says Content is not allowed in prolog. Please help me
Advertisements
error
error  i have 404 error in my program plz tell me yhe solution about
error
error  i have 404 error in my program plz tell me yhe solution about
error
/ServletUserEnquiryForm.shtml getting an error given below SQLException caught: [Microsoft][ODBC SQL Server Driver]COUNT field incorrect or syntax error please suggest
Error
Error  I have created ajax with php for state and city. When I change state then city will not come in dropdown list and it give me error as 'Unknown Runtime Error'. This error come only in IE browser, but in other brower
error
error
error
error  java.lang.unsupportedclassversionerror:bad major version at offset 6 how to solve this????   Hi, Please check the version of framework used and also the JDK version. This type error also comes when java file
error
error  When I deploye the example I have this message cannot Deploy HelloWorld Deployment Error for module: HelloWorld: Error occurred during deployment: Exception while deploying the app [HelloWorld
error!!!!!!!!!
error!!!!!!!!!   st=con.createStatement(); int a=Integer.parseInt(txttrno.getText()); String b=txttname.getText(); String c=txtfrom.getText(); String d=txtto.getText
error!!!!!!!!!
error!!!!!!!!!   st=con.createStatement(); int a=Integer.parseInt(txttrno.getText()); String b=txttname.getText(); String c=txtfrom.getText(); String d=txtto.getText
error!!!!!!!!!
error!!!!!!!!!   st=con.createStatement(); int a=Integer.parseInt(txttrno.getText()); String b=txttname.getText(); String c=txtfrom.getText(); String d=txtto.getText
Error
Error  Hi. I am getting error in the following code after the line I have commented as ERROR. How to solve this. Thanks in advance. package...;"); // ERROR out.println(" var pattern
Error
Error  Hi. I am getting error in the following code after the line I have commented as ERROR. How to solve this. Thanks in advance. package...;"); // ERROR out.println(" var pattern
Error
Error  Hi. I am getting error in the following code after the line I have commented as ERROR. How to solve this. Thanks in advance. package...;"); // ERROR out.println(" var pattern
Error
Error  Hi. I am getting error in the following code after the line I have commented as ERROR. How to solve this. Thanks in advance. package...;"); // ERROR out.println(" var pattern = /^\d{3,5
error
error  whats the error.............. import java.util.Scanner; public class g { public static void main(String[] args) { Scanner s=new Scanner(System.in); int d,x,y; System.out.println("Enter the first number
error
"+it); } } this is my program i am getting an error saying cannot find symbol class string
error message
error message  Sir i make one form facility with insert,update,delete.i want to error msg if any type of the data is missing and display in error msg which of the data is misssing
Permgen error
Permgen error  hi how can i solve permgen error
installation error
installation error  hi, m getting an error like " semicolon found in the selected path".how to resolve this error? during installation of jdk 1.6
error log
error log  hi my requirement is validate xml and xsd in java.If there is an errors then i will log error and store into error table. so plz if any one knows send code urgent. error table details-------------- Table
404 error
into jboss->server-> default->deploy folder it doesn't shows any error. but when i run this application by using localhost:8080/webapp ,it shows 404 error how should i slove this error
JSF error
JSF error  some of the users are not able to update the db. getting the error "An Error Occurred: Error calling action method of component with id CreateorManageOffer:jidjsp134312524923 Caused by: java.lang.NullPointerException
MAin error
MAin error  Error while running hello program in another dir rather in bin. path is already set. java -version jdk1.6.0_24 no error while compilation but @ d tym of runnin error in main class is generated Exception in thread
Error display
Error display  I want to give a message on the screen that an error has occured...but I dont want to use alert and give pop up box...any other solution for the problem
404 error
404 error  struts application having 404 error while hosting to a online server.it works fine in my local machine but dont work in virtual host.showing 404 error
LOGIN ERROR
LOGIN ERROR  ERROR SCRIPT: LOGIN FAILED", $_SESSION['login fail']='0',}?> Ty Team
JSP error
JSP error  what is difference between global-exception and error-page in jsp. which condition they are use
error in driver
error in driver  i have done connection settings for oraclethin driver in netbeans ide 6.9.1. and i was able to view tables of my database.but when i am trying to access tables from my java class i was getting error
Tomcat Error:
Tomcat Error:   Hi, I am not able to start the tomcat server. If I try to start it then I am getting the below error. "coyote connector has not been started" Could some body please help me to solve the problem??? Thanks a ton
Tutorials   
Java Spring Hibernate Struts Training What does core Java include? java What are some way to learn Java quickly? Is it required to learn Java before learning Java Script? Is it necessary to learn java script before learning PHP? Are HTML5 and Java Script boosts Java career? Is Java object oriented? Fingerprint application with Java Uninstall Oracle Virtual Box JSON to HashMap Free Java online Training I want example of Control Statement in Java ANSI Color Codes with Python Create a Program that Calculates Input What is difference between JDK,JRE and JVM? How to see ubuntu version on server? How to get Page Source in Selenium (WebDriver) using Java? The path to the driver executable must be set by the webdriver.gecko.driver system property parse data from a link in java Java Program Qns using BlueJ How to fix HAX Kernel Module Is Not Installed error? Installing Audacity Looking for code Logic to check track changes & Coments in MSWord, MSWordx, MSExcel, MSExcelx is ON/OFF Installing JDK on Mac SAX Parser exception ERROR 601 (42P00): Syntax error. Encountered Thread java.lang.NoClassDefFoundError: org/apache/commons/fileupload/FileItemFactory How to install Ubuntu 16.04 LTS? HttpServletRequest cannot be resolved to a type in eclipse - Solved Unhandled event loop exception GC overhead limit exceeded Spring Data jpa with apache phoenix Caused by: java.lang.IllegalArgumentException: Not a host:port pair: PBUF o.a.h.h.z.RecoverableZooKeeper - Possibly transient ZooKeeper, quorum= com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager class not found com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager not found How to download and install Java 8 on Windows? How to uninstall JDK 7? How to install gtk-doc-tools package in Ubuntu? How to install Oracle JDK 8 on Ubuntu? ejabberd_ctl.beam not found - Solved How to convert date to UTC format in Java? How to install autoconf, automake and libtool in Ubuntu 15.10? How to convert current date to mm dd yyyy format in Java? How to convert current date to dd mm yyyy format in Java? How to stop window closing in "internalFrameClosing" event. How to find list of all index in Neo4j? neo4j-server.properties file location SASLError using PLAIN: not-authorized how to convert war file into .exe file using java code

Ads

 
Advertisement null

Ads