HOW TO TAKE INPUT FROM USER IN JAVA (USING SCANNER CLASS)

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This is probably the most preferred method to take input. The main purpose of the Scanner class is to parse primitive types and strings using regular expressions, however, it is also can be used to read input from the user in the command line.

Convenient methods for parsing primitives (nextInt(), nextFloat(), …) from the tokenized input.
Regular expressions can be used to find tokens.
The reading methods are not synchronized

import java.util.*;
class UserInputDemo
{
public static void main(String[] args)
{
Scanner sc= new Scanner(System.in); //System.in is a standard input stream
System.out.print("Enter first number- ");
int a= sc.nextInt();
System.out.print("Enter second number- ");
int b= sc.nextInt();
System.out.print("Enter third number- ");
int c= sc.nextInt();
int d=a+b+c;
System.out.println("Total= " +d);
}
}

int nextInt() It is used to scan the next token of the input as an integer.
float nextFloat() It is used to scan the next token of the input as a float.
double nextDouble() It is used to scan the next token of the input as a double.
byte nextByte() It is used to scan the next token of the input as a byte.
String nextLine() Advances this scanner past the current line.
boolean nextBoolean() It is used to scan the next token of the input into a boolean value.
long nextLong() It is used to scan the next token of the input as a long.
short nextShort() It is used to scan the next token of the input as a Short.

how to take input from the user
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scanner class in java
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