Add two numbers in Java

Add two numbers in Java 

 

Step 1: Let's open a notepad and write the following code.

 

//Code

class demo {
 public static void main(String arg[]) {
  int a = 10, b = 20, c = 0;
  c = a + b;
  System.out.println("sum of two no is :" + c);
 }
}

Step 2: Name it as "ab.java" and save the file on any location. I saved at "C:\app".

 

Step 3: Open command prompt (Press Window + R and write cmd and hit OK).

 

 

Step 4: Go to "C:\app" by using command prompt

 

 

Step 5: Now write the following code for checking my java file is compiling or not.

 

javac ab.java

 

 

My java program compiled successfully.

 

Step 6: Write the following code in command prompt. Press enter and see the output.

 

java demo

 

// demo is a class name that is written in my ab.java file.

 

Output

 

 

Happy Coding.