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6.5.6 nextFloat() Method
                  It is used to read a float value (real number) and returns token as a float value. For example, to accept a real
                  number:

                      float f= sc.nextFloat();
                  6.5.7 nextDouble() Method
                  It is used to read a double value (real number) and returns token as a double value. For example, to accept a real
                  number:

                      double d= sc.nextDouble();

                  6.5.8 next().charAt(0) Method
                  It is used to read a complete string and returns a character value. The next() is used to read a string value and
                  charAt(0) extracts the character and store in a variable. For example, to extract a character:

                      char c= sc.next().charAt(0);

                                  Write  a Java program  to input  two numbers and  print the numbers after  swapping.  For
                   Program 6
                                  example:
                                  Input   a=8, b=4
                                  Output a=4, b=8

                     1  import java.util.*;
                     2  class swapping

                     3      {
                     4          public static void main()
                     5          {

                     6              Scanner sc= new Scanner(System.in);

                     7              int a,b,temp;
                     8              System.out.println("Enter two numbers ");
                     9              a=sc.nextInt();

                    10              b=sc.nextInt();
                    11              System.out.println("Before Swapping : "+ a+" "+b);

                    12              temp = a;
                    13              a=b;

                    14              b=temp;
                    15              System.out.println("After Swapping : "+ a+" "+b);

                    16         }
                    17     }











                   126    Touchpad Computer Applications-IX
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