Interchange two value without third variable

Interchange two values without third variable

• Make new jFrame and add the components to frame like given in below figure.

• Open source code and declear three variables a,b,c as integer and also type the code of text fields.
• Type the code given below 
  
• Now I will explain how java interchanges the value:

1. Let a=10,b=20.
2. Here a=a+b means a=10+20=30.
3. Now value of a=30.
4. Then b=a-b means b=30-20=10.
5. Then a=a-b means a=30-10=20.
6. So by this java interchanges the value.

• Now print a & b.
• Run the file and see what happens.

Interchange two values with third variable

Interchange two values with third variable

• Make new jFrame and add the components to frame like given in below figure.

• Open source code and declear three variables a,b,c as integer and also type the code of text fields.
• Type the code given below 
  
• Now I will explain how java interchanges the value:

1. Let a=10,b=20,c=0.
2. Here c=a means c=10.
3. Now a=0.
4. Then a=b means a=20.
5. Now b=0.
6. Then b=c means b=10.
7. So by this java interchanges the value.

• Now print a & b.
• Run the file and see what happens.

Division java programming

Division java programming

Open netbeans and open new frame.

Put the components from pallet to jFrame as given below

• Open source code window by double clicking on button.
• Write the code as given below

• Open source code window by double clicking on button.
• Write the code as given below
• Handling with numbers we us either short as short or long as long or integer as it.
• We have use int.
• Integer.parseInt is a code us for coding a number.
• a and b at variables use to type number while c is used to store the the value of a and b and also to show result.
• / sign is use between a and b for the division.
• After completing it ,run the program and see what happens

Multiplication java programming

Multiplication java programming

Open netbeans and open new frame.

Put the components from pallet to jFrame as given below

• Open source code window by double clicking on button.
• Write the code as given below

• Handling with numbers we us either short as short or long as long or integer as it.
• We have use int.
• Integer.parseInt is a code us for coding a number.
• a and b at variables use to type number while c is used to store the the value of a and b and also to show result.
• * sign is use between a and b for the multiplication.
• After completing it ,run the program and see what happens.

Subtraction java programming

Subtraction java programming

Open netbeans and open new frame.

Put the components from pallet to jFrame as given below

• Open source code window by double clicking on button.
• Write the code as given below
  
• Handling with numbers we us either short as short or long as long or integer as it.
• We have use int.
• Integer.parseInt is a code us for coding a number.
• a and b at variables use to type number while c is used to store the the value of a and b and also to show result.
• - sign is use between a and b for the subtraction.
• After completing it ,run the program and see what happens.

Addition java programming

Addition java programming

Open netbeans and open new frame.

Put the components from pallet to jFrame as given           below

• Open source code window by double clicking on button.
• Write the code as given below

• Handling with numbers we us either short as short or long as long or integer as it.
• We have use int.
• Integer.parseInt is a code us for coding a number.
• a and b at variables use to type number while c is used to store the the value of a and b and also to show result.
• + sign is use between a and b for the addition.
• After completing it ,run the program and see what happens.

String type java programming

String type java programing

• Open netbeans and make new application with new name.
• Right click on new application and select new frame.
• Drop four jLabel,jTextField and jButton from pallet on frame.
  
• Name these component as your wish.
• Double click on jButton.
• Source code editor will turn up.
• Type the cooding given in the picture below.
  
  
  
  
  
• Declear the variables.
• Get text means to take text.
• Set text means to provide text.

Completing it right click on the window and click run file.

• Type only on that text field which is related with get text.
• Click on button and see what happens.

Run a line in java

RUN A LINE IN JAVA

• Open net-beans.
• Right click on project to open java class.
• Code editor window will open.
• Public class should be untouched.
• Red line shows error.

SOURCE CODE

/*

 * To change this template, choose Tools | Templates

 * and open the template in the editor.

 */

/**

 *

 * @author sarita

 */

public class NewClass {

    public static void main(String args[]){

        System.out.println("java");

    }

}

CODE TO BE WRITTEN

public static void main(String args[]){

System.out.println("java");

Opening java project

Opening java project

• To open java project following steps have to be follow;-
• Open net-beans program which an be downloaded on the given link

HTTP;//java.sun.com/javase/downloads/netbeans.html

• After opening net-beans click on file button.
• Then click on new project.
• Then click on java application and click next button.
• Give any name to the program and then click on finish button.
• It will open code editor window.

Video is given below