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  1. import java.util.*;
  2. import java.util.regex.*;
  3.  
  4. class Demo {
  5.     static public void main(String[] args) {
  6.         char[] passwordFromField = {'p', 'a', 's', 's'};
  7.         String passwordFromFile = "pass";
  8.  
  9.         System.out.println("Using 'Object.equals()':");
  10.         if (passwordFromField.equals(passwordFromFile)) {
  11.             System.out.println("ACCESS GRANTED");
  12.         } else {
  13.             System.out.println("ACCESS DENIED");
  14.         }
  15.  
  16.         System.out.println();
  17.  
  18.         System.out.println("Using 'java.util.Arrays.equals()':");
  19.         if (Arrays.equals(passwordFromField, passwordFromFile.toCharArray())) {
  20.             System.out.println("ACCESS GRANTED");
  21.         } else {
  22.             System.out.println("ACCESS DENIED");
  23.         }
  24.     }
  25. }
  26.  
Success #stdin #stdout 0.06s 380160KB
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Standard input is empty
stdout
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Using 'Object.equals()':
ACCESS DENIED

Using 'java.util.Arrays.equals()':
ACCESS GRANTED
https://ideone.com/fSI401
Illustration of answer tohttp://stackoverflow.com/questions/16872172/login-jframe-password-control-with-file.
language:
Java (12.0.1)
created:
10 years ago
visibility:
secret

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