Question

Write one Java program and satisfy the following requirements:

1. Rewrite the following if -else if - else statement as an equivalent switch statement.  

if (letter == 'A' | | letter == 'a')

        System.out.println("Excellent");

        else if (letter == 'B' | | letter == 'b')

               System.out.println("You can do better");

        else if (letter == 'C' | | letter == 'c')

               System.out.println("Try harder");

        else if (letter == 'D' | | letter == 'd')

               System.out.println("Try much harder");

        else

               System.out.println("Try another major! ");

2. Write a code to read three different integers and find the larger value by using       if ... else if … else statement.

3. Given the following tax table information, write Java code to assign the double taxRate appropriately given the double pay. Select the selection statement (if, if-else, or switch) that makes the most sense.

     If pay is more than 100,000, tax rate is 40%

     If pay is more than 60,000 and less than or equal to 100,000, tax rate is 30%

     If pay is more than 30,000 and less than or equal to 60,000, tax rate is 20%

     If pay is more than 15,000 and less than or equal to 30,000, tax rate is 10%

     If pay is more than 5,000 and less than or equal to 15,000, tax rate is 5%

     If pay is less than or equal to 5,000, tax rate is 0%

Answer 1

ANSWER:-

QUESTION (1):-

switch(letter)
       {
           case 'A':
       case 'a':
           System.out.println("Excellent");
           break;
       case 'B':
       case 'b':
           System.out.println("You can do better");
           break;
       case 'C':
       case 'c':
           System.out.println("Try harder");
           break;
       case 'D':
       case 'd':
           System.out.println("Try much harder");
           break;
       default:
       System.out.println("Try another major! ");
       }

QUESTION (2):-

import java.util.Scanner;

class Largest
{
public static void main(String args[])
{
int x, y, z,max=0;
System.out.println("Enter three integers : ");
Scanner in = new Scanner(System.in);

x = in.nextInt();
y = in.nextInt();
z = in.nextInt();
max=x;
if (x > y && x > z)
max=x;
else if (y > x && y > z)
max=y;
else if (z > x && z > y)
max=z;
System.out.println("Largest number : "+max);
}
}

OUTPUT:-

QUESTION (3):-

import java.util.Scanner;

class TaxRate
{
public static void main(String args[])
{
double taxRate=0,pay;
System.out.println("Enter pay : ");
Scanner in = new Scanner(System.in);
pay=in.nextDouble();
if (pay>100000)
taxRate=40;
else if (pay>60000 && pay<=100000)
taxRate=30;
else if (pay>30000 && pay<=60000)
taxRate=20;
else if (pay>15000 && pay<=30000)
taxRate=10;
else if (pay>5000 && pay<=15000)
taxRate=5;
else if (pay<=5000)
taxRate=0;
}
}