Page 96 - 2617_JSSPS_C-6
P. 96

Initialising a Variable

              Intitialising means assigning a value to the variable at the time of declaration. We can initialise variables
              in the following way:

                int age = 30;

                String name = "Nisha";
                float temp = 35.7f;

                double price = 625.50;
              Here, variables age, name, temp, and price are initialised with the values 30, “Nisha”, 35.7, and 625.50,
              respectively.



                                                                Hintbot

                    We can assign values to variables after declaration in the following way:

                      age = 30;
                      name = "Nisha";
                      temp = 35.7f;

                      price = 625.50;


              Comments

              A comment is a statement in a Java program that is not executed by the Java compiler. Generally,
              comments are used to give additional information about the code for understanding the code better.

              There are three techniques for adding comments to your Java programs, each of which has its own
              particular usage. These techniques are as follows:

                   Single-Line Comments (//): Use the two forward slashes to comment out text that appears after the
                 forward slashes but on the same line.
                   Multi-Line Comments (/*...*/): Use the /* to turn on comments, and all text will be commented
                 until a */ is reached. This is useful for commenting out multiple lines of code.

                   Documentation Comments (/**...*/): A special type of comment used specifically with the javadoc
                 tool for generating HTML files that contain your comments. This feature of Java is widely used, and it
                 is expected that the HTML pages accompany any Java code that is distributed among developers.
              For example,

              public class comments{
              public static void main(String[] args){

                  System.out.println("Comment Examples");
                  // This is a single line comment.
                  /* This is

                  multiline
                  comment*/




                 94     Premium Edition-VI
   91   92   93   94   95   96   97   98   99   100   101