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7.2 CONDITIONAL STATEMENTS
              Conditional statements allow you to check a condition and execute a certain block of code depending on whether the
              condition is true or false. These statements are also known as decision-making or selection statements. Java provides
              the following conditional statements:
              •  if statement
              •  if…else statement
              •  if and only if statement
              •  if…else…if statement
              •  nested if statement

              7.2.1 The if Statement
              The if statement is used to handle those situations where depending on some condition a single statement or a block
              of  statements  will  execute. If  the condition    Start
              evaluates to true, the block will execute else
              will be ignored and the control of the program
              is transferred to the statement next to the if   temperature=-1;
              statement. The syntax of the if statement is:

                  int temperature=-1;
                  if(condition)
                                                                Condition:          true                 Below
                  {
                                                             if(temperate<0)                          Freezing point
                        Statements;
                  }
              Example of the if statement is:              false
                  int temperature=-1;                              End
                  if (temperature < 0)
                  {
                      System.out.println("Below Freezing Point");
                  }
                     Note: You can use if statement without curly bracket, if your code contains only one statement inside
                     the body of the if statement.

                              To input the basic salary of a person and print the total salary he will be getting after adding the
                Program 2
                              Dearness Allowance of 50% with basic salary. If the total salary is more than Rs.20,000, then
                              the 5% tax will be deducted from the total salary.
                 1  import java.util.*;

                 2  class income_tax
                 3      {

                 4          public static void main()
                 5          {

                 6              Scanner sc= new Scanner(System.in);
                 7              double bs,da,t,ts,tax=0.0;

                 8              System.out.println("Enter the Basic Salary : ");
                 9              bs = sc.nextDouble();

                10              da = 0.5 * bs;



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