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SWITCH CASE 16th June 2023
----------------------------------------------------------------------------------------------------------------------------- (edited and compiled by Souradeep Roy)
3.1 Write a program with switch statement to check the for devices is on or off:-
_____________________________________________________________________________________________________________________________
CODE:-
-------
package com.mycompany.mavenproject1;
import java.util.Scanner;
public class Mavenproject1
{
public static void main(String[] args)
{
Scanner input =new Scanner(System.in);
int number;
System.out.println("\nPress 1 for TV");
System.out.println("\n Press 2 for Fan");
System.out.println("\n Press 3 for Computer");
System.out.println("\n Press 4 for Tube Light");
System.out.println("\n Enter Your Choice");
number=input.nextInt();
switch (number)
{
case 1: System.out.println("The Tv is on");
break;
case 2: System.out.println("The Fan is on");
break;
case 3:System.out.println("The Computer is on");
break;
case 4: System.out.println("The Tube Light is on");
break;
default: System.out.println("\n\nYou have entered an invalid option\nPlease try again");
}
}
}
OUTPUT:-
--------
Press 1 for TV
Press 2 for Fan
Press 3 for Computer
Press 4 for Tube Light
Enter Your Choice
1
The Tv is on
---------------------------------------------------------------------------------------------------------------------
3.2 Write a program with switch statement to add, subtract, multiply, divide two numbers.
_____________________________________________________________________________________________________________________________
CODE:-
-------
package com.mycompany.mavenproject1;
import java.util.Scanner;
public class Mavenproject1
{
public static void main(String[] args)
{
Scanner input =new Scanner(System.in);
{
int number=2;
int a,b,c;
float x,y,z;
System.out.println("Enter two numbers");
a=input.nextInt();
b=input.nextInt();
System.out.println("\n Press 1 for Addition");
System.out.println("\n Press 2 for Subtraction");
System.out.println("\n Press 3 for Multiplication");
System.out.println("\n Press 4 for Division");
System.out.println("\n Enter Your Choice");
number=input.nextInt();
switch (number)
{
case 1 ->
{
c=a+b;
System.out.println(a + " + " + b + " = " + c);
}
case 2 ->
{
c=a-b;
System.out.println(a+"-"+b+"="+c);
}
case 3 ->
{
c=a*b;
System.out.println(a+"*"+b+"=" +c);
}
case 4 ->
{
x=a;
y=b;
z=x/y;
System.out.println(x + " / " + y + " = " + z);
}
default -> System.out.println("\n\n You have entered an invalid option\n Please try again");
}
}
}
}
OUTPUT:-
--------
Enter two numbers
5
6
Press 1 for Addition
Press 2 for Subtraction
Press 3 for Multiplication
Press 4 for Division
Enter Your Choice
1
5 + 6 = 11
---------------------------------------------------------------------------------------------------------------------------
3.3 Write a program with switch statement to make salary sheet.
_____________________________________________________________________________________________________________________________
CODE:-
------
package com.mycompany.mavenproject1;
import java.util.Scanner;
public class Mavenproject1
{
public static void main(String[] args)
{
Scanner input =new Scanner(System.in);
int i;
String nm;
float basic;
float da=0;
float ta=0;
float hra=0;
float it=0;
float pf=0;
float gp=0;
float np=0;
System.out.println("Enter your name");
nm=input.next();
System.out.println("\n Press 1 for Manager");
System.out.println("\n Press 2 for Asst Manager");
System.out.println("\n Press 3 for Clerk");
System.out.println("\n Press 4 for Pion");
System.out.println("\n Enter Your Designation");
i=input.nextInt();
System.out.println("Enter the basic salary:");
basic=input.nextInt();
switch (i)
{
case 1 -> {
da=basic*45/100;
ta=basic*30/100;
hra=basic*20/100;
it=basic*4/100;
pf=basic*8/100;
gp=basic+da+ta+hra;
np=gp-it-pf;
}
case 2 -> {
da=basic*40/100;
ta=basic*25/100;
hra=basic*18/100;
it=basic*3/100;
pf=basic*6/100;
gp=basic+da+ta+hra;
np=gp-it-pf;
}
case 3 -> {
da=basic*38/100;
ta=basic*23/100;
hra=basic*21/100;
it=basic*3/100;
pf=basic*5/100;
gp=basic+da+ta+hra;
np=gp-it-pf;
}
case 4 -> {
da=basic*33/100;
ta=basic*19/100;
hra=basic*14/100;
it=basic*2/100;
pf=basic*4/100;
gp=basic+da+ta+hra;
np=gp-it-pf;
}
default ->
{
System.out.println("\n\n You have entered an invalid option\n Please try again");
}
}
System.out.println("Your Good Name Is "+nm);
System.out.println("Basic = "+basic);
System.out.println("DA = "+da);
System.out.println("TA = "+ta);
System.out.println("HRA = "+hra);
System.out.println("IT ="+it);
System.out.println("PF ="+pf);
System.out.println("GP ="+gp);
System.out.println("NP = "+np);
}
}
OUTPUT:-
--------
Enter your name
Souradeep
Press 1 for Manager
Press 2 for Asst Manager
Press 3 for Clerk
Press 4 for Pion
Enter Your Designation
1
Enter the basic salary:
60000
Your Good Name Is Souradeep
Basic = 60000.0
DA = 27000.0
TA = 18000.0
HRA = 12000.0
IT =2400.0
PF =4800.0
GP =117000.0
NP = 109800.0
-----------------------------------------------------------------------------------------------------------------------------
3.4 Print how many days in a month using switch
____________________________________________________________________________________________________________________________
CODE:-
------
package com.mycompany.mavenproject1;
import java.util.Scanner;
public class Mavenproject1
{
public static void main(String[] args)
{
Scanner input =new Scanner(System.in);
int i;
System.out.println("Enter the month Number=");
i=input.nextInt();
switch(i)
{
case 1 -> System.out.println("\nJanuary,31");
case 2 -> System.out.println("\nFebruary,28");
case 3 -> System.out.println("\nMarch,31");
case 4 -> System.out.println("\nApril,30");
case 5 -> System.out.println("\nMay,31");
case 6 -> System.out.println("\nJune,30");
case 7 -> System.out.println("\nJuly,31");
case 8 -> System.out.println("\nAugust,31");
case 9 -> System.out.println("\nSeptember,30");
case 10 -> System.out.println("\nOctober,31");
case 11 -> System.out.println("\nNovember,30");
case 12 -> System.out.println("\nDecember,31");
default -> System.out.println("\nInvalid month");
}
}
}
OUTPUT:-
--------
Enter the month Number=
1
January,31
-----------------------------------------------------------------------------------------------------------------------------
3.5 Write a program of question and answer where +10 for each correct answer and -5 for each wrong answers.
____________________________________________________________________________________________________________________________
CODE:-
-------
package com.mycompany.mavenproject1;
import java.util.Scanner;
public class Mavenproject1
{
public static void main(String[] args)
{
Scanner input =new Scanner(System.in);
int i,sc=0;
System.out.println("\nQ.1) Who is the first President of India ?");
System.out.println("\n1. Jawahar Lal Nehru");
System.out.println("\n2. Bhim Rao Ambedkar");
System.out.println("\n3. Rajendra Prasad");
System.out.println("\n4. Mahatma Gandhi");
System.out.println("\n========================================");
System.out.println("\nEnter the your choice");
i=input.nextInt();
switch(i)
{
case 1 -> {
System.out.println("\nWrong Answer");
sc=sc-5; }
case 2 -> {
System.out.println("\nWrong Answer");
sc=sc-5; }
case 3 -> {
System.out.println("\nCorrect Answer");
sc=sc+10; }
case 4 -> {
System.out.println("\nWrong Answer");
sc=sc-5; }
default -> {
System.out.println("\nInvalid Answer");
sc=sc-5; }
}
System.out.println("\n\n*************************************************************");
System.out.println("\nNow Your Score ="+sc);
i=0;
System.out.println("\n\n============================================");
System.out.println("\nQ.2) Who is the writer of Indian Constitution ?");
System.out.println("\n1. Jawahar Lal Nehru");
System.out.println("\n2. Bhim Rao Ambedkar");
System.out.println("\n3. Rajendra Prasad");
System.out.println("\n4. Mahatma Gandhi");
System.out.println("\n============================================");
System.out.println("\nEnter the your choice");
i=input.nextInt();
switch(i)
{
case 1 -> {
System.out.println("\nWrong Answer");
sc=sc-5; }
case 2 -> {
System.out.println("\nCorrect Answer");
sc=sc+10; }
case 3 -> {
System.out.println("\nWrong Answer");
sc=sc-5; }
case 4 -> {
System.out.println("\nWrong Answer");
sc=sc-5; }
default -> {
System.out.println("\nInvalid Answer");
sc=sc-5; }
}
System.out.println("\n\n*************************************************************");
System.out.println("\nNow Your Score ="+sc);
i=0;
System.out.println("\n\n=============================================");
System.out.println("\nQ.3) Who is the Authority of Indian Army ?");
System.out.println("\n1. Prime Minister");
System.out.println("\n2. President");
System.out.println("\n3. Governor");
System.out.println("\n4. Major General");
System.out.println("\n===========================================");
System.out.println("\nEnter the your choice");
i=input.nextInt();
switch(i)
{
case 1 -> {
System.out.println("\nWrong Answer");
sc=sc-5; }
case 2 -> {
System.out.println("\nCorrect Answer");
sc=sc+10; }
case 3 -> {
System.out.println("\nWrong Answer");
sc=sc-5; }
case 4 -> {
System.out.println("\nWrong Answer");
sc=sc-5; }
default -> {
System.out.println("\nInvalid Answer");
sc=sc-5; }
}
System.out.println("\n\n*************************************************************");
System.out.println("\nNow Your Score ="+sc);
System.out.println("\n\n===========================================");
System.out.println("\nQ.4) Who is the Father of India ?");
System.out.println("\n1. Jawahar Lal Nehru");
System.out.println("\n2. Bhim Rao Ambedkar");
System.out.println("\n3. Rajendra Prasad");
System.out.println("\n4. Mahatma Gandhi");
System.out.println("\n===========================================");
System.out.println("\nEnter the your choice");
i=input.nextInt();
switch(i)
{
case 1 -> {
System.out.println("\nWrong Answer");
sc=sc-5; }
case 2 -> {
System.out.println("\nWrong Answer");
sc=sc-5; }
case 3 -> {
System.out.println("\nWrong Answer");
sc=sc-5; }
case 4 -> {
System.out.println("\nCorrect Answer");
sc=sc+10; }
default -> {
System.out.println("\nInvalid Answer");
sc=sc-5; }
}
System.out.println("\n\n*************************************************************");
System.out.println("\nNow Your Score "+sc);
i=0;
System.out.println("\n\n===========================================");
System.out.println("\nQ.5) Who is the First Prime Minister ?");
System.out.println("\n1. Jawahar Lal Nehru");
System.out.println("\n2. Bhim Rao Ambedkar");
System.out.println("\n3. Rajendra Prasad");
System.out.println("\n4. Mahatma Gandhi");
System.out.println("\n===========================================");
System.out.println("\nEnter the your choice");
i=input.nextInt();
switch(i)
{
case 1 -> {
System.out.println("\nCorrect Answer");
sc=sc+10; }
case 2 -> {
System.out.println("\nWrong Answer");
sc=sc-5; }
case 3 -> {
System.out.println("\nWrong Answer");
sc=sc-5; }
case 4 -> {
System.out.println("\nWrong Answer");
sc=sc-5; }
default -> {
System.out.println("\nInvalid Answer");
sc=sc-5; }
}
System.out.println("\n\n*************************************************************");
System.out.println("\nNow Your Score ="+sc);
i=0;
System.out.println("\n\n===========================================");
System.out.println("\nQ.6) Who is the Head of Indian Constitution ?");
System.out.println("\n1. Prime Minister");
System.out.println("\n2. Chief Justice");
System.out.println("\n3. President");
System.out.println("\n4. Governor");
System.out.println("\n===========================================");
System.out.println("\nEnter the your choice");
i=input.nextInt();
switch(i)
{
case 1 -> {
System.out.println("\nWrong Answer");
sc=sc-5; }
case 2 -> {
System.out.println("\nWrong Answer");
sc=sc-5; }
case 3 -> {
System.out.println("\nCorrect Answer");
sc=sc+10; }
case 4 -> {
System.out.println("\nWrong Answer");
sc=sc-5; }
default -> {
System.out.println("\nInvalid Answer");
sc=sc-5; }
}
System.out.println("\n\n*************************************************************");
System.out.println("\nNow Your Score ="+sc);
i=0;
System.out.println("\n\n============================================");
System.out.println("\nQ.7 Who is the Haed of State in India ?");
System.out.println("\n1. Prime Minister");
System.out.println("\n2. President");
System.out.println("\n3. Chief Minister");
System.out.println("\n4. Governor");
System.out.println("\n============================================");
System.out.println("\nEnter the your choice");
i=input.nextInt();
switch(i)
{
case 1 -> {
System.out.println("\nWrong Answer");
sc=sc-5; }
case 2 -> {
System.out.println("\nWrong Answer");
sc=sc-5; }
case 3 -> {
System.out.println("\nWrong Answer");
sc=sc-5; }
case 4 -> {
System.out.println("\nCorrect Answer");
sc=sc+10; }
default -> {
System.out.println("\nInvalid Answer");
sc=sc-5; }
}
System.out.println("\n\n*************************************************************");
System.out.println("\nNow Your Score ="+sc);
i=0;
System.out.println("\n\n============================================");
System.out.println("\nQ.8 Who is the Head of the University in State ?");
System.out.println("\n1. President");
System.out.println("\n2. Governor");
System.out.println("\n3. Prime Minister");
System.out.println("\n4. Chef Minister");
System.out.println("\n===========================================");
System.out.println("\nEnter the your choice");
i=input.nextInt();
switch(i)
{
case 1 -> {
System.out.println("\nWrong Answer");
sc=sc-5; }
case 2 -> {
System.out.println("\nCorrect Answer");
sc=sc+10; }
case 3 -> {
System.out.println("\nWrong Answer");
sc=sc-5; }
case 4 -> {
System.out.println("\nWrong Answer");
sc=sc-5; }
default -> {
System.out.println("\nInvalid Answer");
sc=sc-5; }
}
System.out.println("\n\n*************************************************************");
System.out.println("\nNow Your Score ="+sc);
i=0;
System.out.println("\n\n============================================");
System.out.println("\nQ.9) Who is the Head of Yojna Comission ?");
System.out.println("\n1. Prime Minster");
System.out.println("\n2. President");
System.out.println("\n3. Cheif Justice");
System.out.println("\n4. Cheif Minister");
System.out.println("\n============================================");
System.out.println("\nEnter the your choice");
i=input.nextInt();
switch(i)
{
case 1 -> {
System.out.println("\nCorrect Answer");
sc=sc+10; }
case 2 -> {
System.out.println("\nWrong Answer");
sc=sc-5; }
case 3 -> {
System.out.println("\nWrong Answer");
sc=sc-5; }
case 4 -> {
System.out.println("\nWrong Answer");
sc=sc-5; }
default -> {
System.out.println("\nInvalid Answer");
sc=sc-5; }
}
System.out.println("\n\n*************************************************************");
System.out.println("\nNow Your Score ="+sc);
i=0;
System.out.println("\n\n=============================================");
System.out.println("\nQ.10) Who is the Head of Judiciary ?");
System.out.println("\n1. President");
System.out.println("\n2. Cheif Justice");
System.out.println("\n3. Governor");
System.out.println("\n4. Cheif Minister");
System.out.println("\n==============================================");
System.out.println("\nEnter the your choice");
i=input.nextInt();
switch(i)
{
case 1 -> {
System.out.println("\nWrong Answer");
sc=sc-5; }
case 2 -> {
System.out.println("\nCorrect Answer");
sc=sc+10; }
case 3 -> {
System.out.println("\nWrong Answer");
sc=sc-5; }
case 4 -> {
System.out.println("\nWrong Answer");
sc=sc-5; }
default -> {
System.out.println("\nInvalid Answer");
sc=sc-5; }
}
System.out.println("\n\n*************************************************************");
System.out.println("\nNow Your Score ="+sc);
i=0;
System.out.println("\n\n\n-----------------------------------------------------------");
System.out.println("\nYour total Score =/100"+sc);
}
}
OUTPUT:-
--------
Who is the first President of India ?
1. Jawahar Lal Nehru
2. Bhim Rao Ambedkar
3. Rajendra Prasad
4. Mahatma Gandhi
========================================
Enter the your choice 1
Correct Answer
*************************************************************
Now Your Score = 10
_______________________________________________>Good bye and happyCoding<____________________________________________________
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