36 lines
1.1 KiB
Java
36 lines
1.1 KiB
Java
package Sorting;
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import java.io.File;
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import java.io.IOException;
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import java.io.FileWriter;
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import java.lang.Math;
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/**
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* This class will allow the user to make a file of random integers.
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* The user will be able to select a file name, how many numbers are in the file,
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* the minimum value generated, and the maximum value generated.
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*/
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public class RandomNumberFileMaker {
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public RandomNumberFileMaker(String filename, int count, int min, int max){
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try{
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File randomNumbers = new File(filename);
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if(randomNumbers.createNewFile()==false){
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System.out.println("File already exists.");
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}
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else{
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FileWriter randomWriter = new FileWriter(randomNumbers);
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for(int i=0;i<count;i++){
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int rand = min + (int) (Math.random()*(max-min));
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randomWriter.write(rand);
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randomWriter.write("\n");
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}
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randomWriter.close();
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}
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}catch (IOException ex){
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System.err.println(ex);
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}
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}
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} |