Scanner class in use to read the input from the user. nextLine() method which used read line of the text.
import java.util.*;
class Example{
public static void main(String args[])
{
Scanner input = new Scanner(System.in);
System.out.print("Enter your number : ");
int number = input.nextInt();
System.out.println();
System.out.println("Your Number : " + number);
}
}Ask to enter the Number if you enter as 12. answer below as 12
Output
Enter your number :
Your Number : 12
Add Two Using Scanner Inputs
input two numbers and read the data and calculate and display the total.
import java.util.*;
class Example{
public static void main(String args[])
{
Scanner input = new Scanner(System.in);
System.out.print("Enter Number 1 : ");
int number1 = input.nextInt();
System.out.print("Enter Number 2 : ");
int number2 = input.nextInt();
int total = number1 + number2;
System.out.println();
System.out.println("Total : " + total);
}
}
Output
Enter Number 1 : 23
Enter Number 2 : 45
Total : 68
How to input String using Scanner
import java.util.*;
class Example{
public static void main(String args[])
{
Scanner input = new Scanner(System.in);
System.out.print("Enter your text : ");
String text = input.nextLine();
System.out.println();
System.out.println("Your Text : " + text);
}
}Output
Enter your text : Tutusfunny
Your Text : Tutusfunny
Money Calculate System
import java.util.*;
class Example{
public static void main(String args[])
{
Scanner input = new Scanner(System.in);
System.out.print("Enter Salary : ");
int salary = input.nextInt();
System.out.println();
int notes = salary / 5000;
salary = salary % 5000;
System.out.println("5000 notes : " + notes);
notes = salary / 1000;
salary = salary % 1000;
System.out.println("1000 notes : " + notes);
notes = salary / 500;
salary = salary % 500;
System.out.println("500 notes : " + notes);
notes = salary / 100;
salary = salary % 100;
System.out.println("100 notes : " + notes);
notes = salary / 50;
salary = salary % 50;
System.out.println("50 notes : " + notes);
notes = salary / 20;
salary = salary % 20;
System.out.println("20 notes : " + notes);
int coins = salary / 10;
salary = salary % 10;
System.out.println("10 coins : " + coins);
coins = salary / 5;
salary = salary % 5;
System.out.println("5 coins : " + coins);
coins = salary / 2;
salary = salary % 2;
System.out.println("2 coins : " + coins);
System.out.println("1 coins : " + salary);
}
}Output
Enter Salary : 56515
5000 notes : 11
1000 notes : 1
500 notes : 1
100 notes : 0
50 notes : 0
20 notes : 0
10 coins : 1
5 coins : 1
2 coins : 0
1 coins : 0
Personal Details inputs
import java.util.*;
class Example{
public static void main(String args[]){
Scanner input = new Scanner(System.in);
System.out.print("Enter your first name : ");
String firstName = input.next();
System.out.print("Enter your last name : ");
String lastName = input.next();
System.out.print("Enter your home number : ");
String homeNumber = input.next();
System.out.print("Enter your street name : ");
String streetName = input.next();
System.out.print("Enter your city : ");
String city = input.next();
System.out.println();
System.out.println("Your Full Name : " + firstName + " " + lastName);
System.out.println("Your Home Address : No: " + homeNumber + ", " + streetName + " Rd, " + city + ".");
}
}Output
Enter your first name : Ram
Enter your last name : Kobi
Enter your home number : 87
Enter your street name : Main
Enter your city : Channai
Your Full Name : Ram Kobi
Your Home Address : No: 87, Main Rd, Channai.
IF Examples Using Scanner
Example 1
import java.util.*;
class Example{
public static void main(String args[])
{
Scanner input = new Scanner(System.in);
System.out.print("Enter your age : ");
int age = input.nextInt();
if(age < 18){
System.out.println("Child....");
}else if(age < 35){
System.out.println("young....");
}else{
System.out.println("Elder....");
}
}
}Output
Enter your age : 67
Elder….
Example 2
import java.util.*;
class Example{
public static void main(String args[]){
Scanner input = new Scanner(System.in);
System.out.print("Enter Number 1 : ");
int number1 = input.nextInt();
System.out.print("Enter Number 2 : ");
int number2 = input.nextInt();
System.out.println();
if(number1 > number2){
System.out.println("Maximum Number : Number 1");
}else{
System.out.println("Maximum Number : Number 2");
}
}
}Output
Enter Number 1 : 45
Enter Number 2 : 66
Maximum Number : Number 2
Example 3
import java.util.*;
class Example{
public static void main(String args[])
{
Scanner input = new Scanner(System.in);
System.out.print("Enter Number 1 : ");
int number1 = input.nextInt();
System.out.print("Enter Number 2 : ");
int number2 = input.nextInt();
System.out.print("Enter Number 3 : ");
int number3 = input.nextInt();
if(number1 > number2){
if(number1 > number3){
System.out.println("Maximum Number : Number 1");
}else{
System.out.println("Maximum Number : Number 3");
}
}else if(number2 > number3){
System.out.println("Maximum Number : Number 2");
}else{
System.out.println("Maximum Number : Number 3");
}
}
}Output
Enter Number 1 : 56
Enter Number 2 : 78
Enter Number 3 : 56
Maximum Number : Number 2
Example 4
import java.util.*;
class Example{
public static void main(String args[])
{
Scanner input = new Scanner(System.in);
System.out.print("Enter Subject 1 Marks : ");
int marks1 = input.nextInt();
System.out.print("Enter Subject 2 Marks : ");
int marks2 = input.nextInt();
System.out.print("Enter Subject 3 Marks : ");
int marks3 = input.nextInt();
System.out.print("Enter Subject 4 Marks : ");
int marks4 = input.nextInt();
System.out.print("Enter Subject 5 Marks : ");
int marks5 = input.nextInt();
System.out.println();
int total = marks1 + marks2 + marks3 + marks4 + marks5;
double average = (double)total / 5;
String result = "Fail";
if(average >= 50){
result = "Pass";
}
System.out.println("Total : " + total);
System.out.println("Average : " + average);
System.out.println("Result : " + result);
}
}
Output
Enter Subject 1 Marks : 56
Enter Subject 2 Marks : 78
Enter Subject 3 Marks : 56
Enter Subject 4 Marks : 78
Enter Subject 5 Marks : 56
Total : 324
Average : 64.8
Result : Pass
Example 6
import java.util.*;
class Example{
public static void main(String args[])
{
Scanner input = new Scanner(System.in);
System.out.print("Enter Subject Marks : ");
int marks = input.nextInt();
System.out.println();
if(marks > 100)
{
System.out.println("Invalid Marks.....");
}
else if(marks < 0)
{
System.out.println("Invalid Marks.....");
}
else if(marks >= 75)
{
System.out.println("Grade : A");
}
else if(marks >= 65)
{
System.out.println("Grade : B");
}
else if(marks >= 55)
{
System.out.println("Grade : C");
}
else if(marks >= 35)
{
System.out.println("Grade : S");
}
else{
System.out.println("Grade : F");
}
}
}Output
Enter Subject Marks : 56
Grade : C
Example 7
Inventory Billing System
import java.util.Scanner;
public class FirstApp {
public static void main(String[] args) {
{
Scanner scanner = new Scanner(System.in);
double totalBill = 0.0;
int choice = 0;
do {
System.out.println("Food Menu:");
System.out.println("1. Burger - $5.99");
System.out.println("2. Pizza - $7.99");
System.out.println("3. Salad - $3.99");
System.out.println("4. Exit");
System.out.print("Enter your choice: ");
choice = scanner.nextInt();
switch (choice) {
case 1:
totalBill += 5.99;
break;
case 2:
totalBill += 7.99;
break;
case 3:
totalBill += 3.99;
break;
case 4:
System.out.println("Exiting...");
break;
default:
System.out.println("Invalid choice. Please try again.");
}
} while (choice!= 4);
System.out.println("Your total bill is: $" + totalBill);
}
}
}