In the example above, we used the nextLine() method, which is used to read Strings. To read other types, look at the table below:
| Method | Description |
|---|---|
nextBoolean() |
Reads a boolean value from the user |
nextByte() |
Reads a byte value from the user |
nextDouble() |
Reads a double value from the user |
nextFloat() |
Reads a float value from the user |
nextInt() |
Reads a int value from the user |
nextLine() |
Reads a String value from the user |
nextLong() |
Reads a long value from the user |
nextShort() |
Reads a short value from the user |
In the example below, we use different methods to read data of various types:
Example
import java.util.Scanner;
class Main {
public static void main(String[] args) {
Scanner myObj = new Scanner(System.in);
System.out.println("Enter name, age and salary:");
// String input
String name = myObj.nextLine();
// Numerical input
int age = myObj.nextInt();
double salary = myObj.nextDouble();
// Output input by user
System.out.println("Name: " + name);
System.out.println("Age: " + age);
System.out.println("Salary: " + salary);
}
}
Note: If you enter wrong input (e.g. text in a numerical input), you will get an exception/error message (like "InputMismatchException").
You can read more about exceptions and how to handle errors in the Exceptions chapter.
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