Random password generator completed, Issue #36

src/com/masterhash/gui/NewLogin.java

@@ -1,5 +1,8 @@
 package com.masterhash.gui;
 
+import java.util.ArrayList;
+import java.util.Random;
+
 import javafx.geometry.Insets;
 import javafx.geometry.Pos;
 import javafx.scene.Scene;
@@ -34,9 +37,16 @@ public static void display() {
 		TextField userNameTextField = new TextField();
 		userNameTextField.setPromptText("Username");
 
-		PasswordField passwordField = new PasswordField();
+		TextField passwordField = new TextField();
 		passwordField.setPromptText("Password");
 		Button generateButton = new Button("Generate");
+
+		generateButton.setOnAction(e -> {
+			passwordField.setText(GeneratePassword_LettersNums(10));
+			// with special chars
+			// passwordField.setText(GeneratePassword_AllChars(10);
+
+		});
 
 		HBox generatePasswordArea = new HBox();
 		generatePasswordArea.getChildren().addAll(passwordField, generateButton);
@@ -52,4 +62,139 @@ public static void display() {
 		window.setScene(scene);
 		window.showAndWait();
 	}
+
+
+	//Return random string of length n including all chars
+	//Containing at least one Cap, one number, and one special char
+	private static String GeneratePassword_AllChars(int length) {
+
+		 ArrayList<Character>AllChars = new ArrayList<Character>();
+
+			//ASCII 33- 47
+			 for(char c = '!'; c<='/'; c++) {
+				 AllChars.add(c);
+			 }
+			 // add digits 0�9, 
+			  for (char c = '0'; c <= '9'; c++) {
+			    AllChars.add(c);
+			  }
+			  //ASCII 58 - 64
+			  for(char c = ':'; c<='@'; c++) {
+				  AllChars.add(c);
+			  }
+
+			  // Uppercase A�Z ASCII 65 -  90, 31 - 66
+			  for (char c = 'A'; c <= 'Z'; c++) {
+			    AllChars.add(c);
+			  }
+
+			  // lowercase a�z, 97 -122, 67 - 92
+			  for (char c = 'a'; c <= 'z'; c++) {
+			    AllChars.add(c);
+			  }
+
+			  //ASCII 91 - 96, 93 - 
+			  for (char c = '['; c <= '`'; c++) {
+				  AllChars.add(c);
+			  }
+			  //ASCII 123 - 126
+			  for(char c = '{'; c <= '~'; c++) {
+				  AllChars.add(c);
+			  }
+
+			  Boolean addedCAP = false;
+			  Boolean addedSpecial = false;
+			  Boolean addedNum = false;
+
+			  StringBuilder temp = new StringBuilder();
+			  Random rand = new Random();
+
+			  //add chars
+			  for (int i = 0; i < length; i++) {
+				  int j = rand.nextInt(93);
+				  //At least one digit added
+				if (j >= 15 && j <= 23) {
+					addedNum = true;
+				}
+				//At least one CAP
+				if(j >= 32 && j <= 57) {
+					addedCAP  = true; 
+				}
+				//At least one Special
+				if((j<= 14) || (j >= 24 && j <= 30) || (j>= 57 && j <=62) || (j>89)) {
+					addedSpecial = true;
+				}
+				  temp.append(AllChars.get(j));
+				//		 System.out.println(s.get(j));
+				  }
+
+			 if(addedNum == false) {
+				int j = rand.nextInt(9) + 15;
+				temp.append(AllChars.get(j));
+			 }
+			 if(addedCAP == false) {
+				 int j = rand.nextInt(25) + 32;
+					temp.append(AllChars.get(j));
+
+			 }
+			 if(addedSpecial == false) {
+				 int j = rand.nextInt(15);
+					temp.append(AllChars.get(j));
+
+			 }
+
+
+			 return temp.toString();
+
+	}
+
+	//Random String of only letters and at least one number of length n
+	private static String GeneratePassword_LettersNums(int length) {
+
+		 ArrayList<Character>AllChars = new ArrayList<Character>();
+
+
+			 // add digits 0�9, 
+			  for (char c = '0'; c <= '9'; c++) {
+			    AllChars.add(c);
+			  }
+
+
+			  // Uppercase A�Z ASCII 65 -  90
+			  for (char c = 'A'; c <= 'Z'; c++) {
+			    AllChars.add(c);
+			  }
+
+			  // lowercase a�z, 97 -122
+			  for (char c = 'a'; c <= 'z'; c++) {
+			    AllChars.add(c);
+			  }
+
+			  Boolean addedNum = false;
+
+			  StringBuilder temp = new StringBuilder();
+			  Random rand = new Random();
+
+			  //add chars
+			  for (int i = 0; i < length; i++) {
+				  int j = rand.nextInt(61);
+				  //At least one digit added
+				if (j < 10) {
+					addedNum = true;
+				}
+
+				  temp.append(AllChars.get(j));
+				//		 System.out.println(s.get(j));
+				  }
+
+			 if(addedNum == false) {
+				int j = rand.nextInt(9);
+				temp.append(AllChars.get(j));
+			 }
+
+
+
+			 return temp.toString();
+
+	}
 }