I don't know how to combine scanner and random class.
Doraemon program with 5% chance of serving kettle
A list of secret tools is created by a text file and read at the time of starting. In the text, one secret tool name is written in each line.
Every time Enter is entered, a 5% chance of talking "kettle" and a 95% chance of talking the name of one of the honey tools in the list.
Enter "end" to exit the program.
Example) "Small light~" (Tool name +~)
"""Donbura powder~""
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
public class Question {
public static void main(String[]args) {
try{
BufferedReader br = new BufferedReader (new InputStreamReader (new FileInputStream(filePath), "txt"));
String line;
while((line=br.readLine())!=null){
// process the line.
}
br.close();
} catch(IOExceptione){
e.printStackTrace();
｝
Once you have read from the file, store the string in a list, array, etc.
After that, please use random numbers for each input.
An example implementation based on the code provided is as follows:
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
import java.util.Scanner;
public class Question {
public static void main(String[]args) {
String filePath = "items.txt";
try{
BufferedReader br = new BufferedReader (new InputStreamReader (new FileInputStream(filePath)));
String line;
// List to store input
List<String>list=new ArrayList<String>();;
while((line=br.readLine())!=null){
// list the data in a file line by line
list.add(line);
}
// Generating Random Objects
Random rnd = new Random();
// Generating Scanner Objects
try(Scanner sc=new Scanner(System.in)){
while(true){
// Line feed (enter a string containing Enter)
line=sc.nextLine();
if("end".equals(line)){
// complete the program by typing end
break;
} else {
if(rnd.nextInt(20)==0){
// have a 5% chance of marking the kettle
System.out.println("Kettle");
} else {
// 95% chance of displaying one of the names in the list
System.out.println(list.get(rnd.nextInt(list.size()));
}
}
}
}
br.close();
} catch(IOExceptione){
e.printStackTrace();
}
}
}
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