java scanner
import java.util.Scanner;
// import scanner
Scanner myScanner = new Scanner(System.in); // Make scanner obj
String inputString = myScanner.nextLine(); // Take whole line
boolean inputBoolean = myScanner.nextBoolean(); //Boolean input
long inputLong = myScanner.nextLong(); //Interger,long ... input
skener v Javě
import java.util.Scanner; //Import Scanner in java
class classname{
public void methodname(){
Scanner s_name = new Scanner(System.in); //Scanner declaration
//Use Scanner object to take input
int val1 = s_name.nextInt(); //int
float val2 = s_name.nextFloat(); //float
double val3 = s_name.nextDouble(); //double
string name = s_name.nextLine(); //string
char ch = s_name.nextLine().charAt(0); //character
}}
java scanner
import java.util.Scanner;//import Scanner
Scanner input=new Scanner(System.in);//Create the scanner Obj
float numF = input.nextFloat();//Returns float
int num1 = input.nextInt(); //Returns int
byte byte1 = input.nextByte();//Returns Byte
long lg1 = input.nextLong();//Returns long
boolean b1 = input.nextBoolean();//Returns bool
double num2 = input.nextDouble();//Returns Double
String nome = input.nextLine();//Returns String
//execution is pause until you give input
jak používat skenery v Javě
import java.util.Scanner;
Public class Scanner {
Public static void main(String[] args) {
// Scanner *scanner name here* = new Scanner(System.in);
Scanner scan = new Scanner(System.in);
System.out.println("Type anything and the scanner will take that input and print it");
String next = scan.next();
System.out.println(next);
}
}
jak používat třídu skeneru v Javě
// import Scanner
import java.util.Scanner;
// Initialize Scanner
Scanner input = new Scanner(System.in);
// Test program with Scanner
System.out.println("What is your name?");
String name = input.nextLine();
System.out.println("Hello," + name + " , it is nice to meet you!");
funkce skeneru java
import java.util.Scanner;
public class scanners{
public static void main(String[] args){
Scanner scan = new Scanner(System.in);
// Reading int
System.out.print("Enter your age");
int age = scan.nextInt();
// Reading double
System.out.print("Enter your salary");
double salary = scan.nextDouble();
// Reading float
System.out.print("Enter employees average salary");
float average = scan.nextFloat();
// Reading Single Character
System.out.print("Enter any character from a to z");
char charcter = scan.next().charAt(0);
// Reading string
System.out.print("Enter your full name");
String fullname = scan.next();
// Reading long
System.out.print("enter a long number");
long number = scan.nextLong();
}
}
jak poskytnout dlouhý řetězec ve třídě skeneru Java
If you use the nextLine() method immediately following the nextInt() method,
nextInt() reads integer tokens; because of this, the last newline character for
that line of integer input is still queued in the input buffer and the next
nextLine() will be reading the remainder of the integer line (which is empty).
So we read can read the empty space to another string might work. Check below
code.
import java.util.Scanner;
public class Solution {
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
int i = scan.nextInt();
// Write your code here.
double d = scan.nextDouble();
String f = scan.nextLine();
String s = scan.nextLine();
System.out.println("String: " + s);
System.out.println("Double: " + d);
System.out.println("Int: " + i);
}
}