Android™

Generating Random Password

See more PRNG Examples

Demonstrates how to generate random passwords. Android™

// Important: Don't forget to include the call to System.loadLibrary
// as shown at the bottom of this code sample.
package com.test;

import android.app.Activity;
import com.chilkatsoft.*;

import android.widget.TextView;
import android.os.Bundle;

public class SimpleActivity extends Activity {

  private static final String TAG = "Chilkat";

  // Called when the activity is first created.
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    boolean success = false;

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    success = false;

    CkPrng fortuna = new CkPrng();

    // Set this equal to true if the generated password must include at least one digit (0-9)
    boolean bDigit = true;

    // Set this equal to true if the generated password must include both uppercase and lowercase chars.
    boolean bUpperAndLower = true;

    // The generated password must contain one of the following non-alphanumeric chars.
    String otherChars = "@#$%*";

    // Exclude chars that appear similar to others:
    String excludeChars = "iIlLoO0";

    // Generate 8-character passwords:
    int i;
    for (i = 1; i <= 10; i++) {
        Log.i(TAG, fortuna.randomPassword(8,bDigit,bUpperAndLower,otherChars,excludeChars));
        }


  }

  static {
      System.loadLibrary("chilkat");

      // Note: If the incorrect library name is passed to System.loadLibrary,
      // then you will see the following error message at application startup:
      //"The application <your-application-name> has stopped unexpectedly. Please try again."
  }
}