Add more practical methods to support simpler method call

Author: DevExzh

src/utils/FoundationClassUtilities.java

@@ -1,6 +1,8 @@
 package utils;
 
+import java.util.Arrays;
 import java.util.Collection;
+import java.util.HashSet;
 
 /**
  * Additional classes and methods to support more features like C/C++ like style coding
@@ -27,6 +29,40 @@ public static int scanValidInteger(String prompt, FunctionPointer<Boolean, Integ
  }
  }
 
+ public static double scanValidDouble(String prompt, FunctionPointer<Boolean, Double> callback) {
+ double returnValue;
+ for(;;) {
+ if(callback.invoke(returnValue = ScannerInput.validNextDouble(prompt))) {
+ return returnValue;
+ }
+ System.out.println("Sorry, that is an invalid value, please enter again!");
+ }
+ }
+
+ public static String scanValidString(String prompt, FunctionPointer<Boolean, String> callback) {
+ String returnValue;
+ for(;;) {
+ if(callback.invoke(returnValue = ScannerInput.validNextLine(prompt))) {
+ return returnValue;
+ }
+ System.out.println("Sorry, that is an invalid value, please enter again!");
+ }
+ }
+
+ public static String scanValidString(String prompt, Collection<String> collection) {
+ String returnValue;
+ for(;;) {
+ if(collection.contains(returnValue = ScannerInput.validNextLine(prompt).toLowerCase())) {
+ return returnValue;
+ }
+ System.out.println("Sorry, that is an invalid value, please enter again!");
+ }
+ }
+
+ public static String scanValidString(String prompt, String[] array) {
+ return scanValidString(prompt, new HashSet<>(Arrays.asList(array)));
+ }
+
  /**
  * A helper class that helps to count, sum, calculate, etc.
  * @param <E> the type of the elements that the collection contains