From 72654932f207c0ae2e1f63e8df04d393568dcde1 Mon Sep 17 00:00:00 2001
From: serso <se.solovyev@gmail.com>
Date: Fri, 8 Jan 2016 16:35:27 +0100
Subject: [PATCH] Let's not allocate iterate but use good old for loop

---
 .../solovyev/android/calculator/math/MathType.java  | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/app/src/main/java/org/solovyev/android/calculator/math/MathType.java b/app/src/main/java/org/solovyev/android/calculator/math/MathType.java
index 1b769211..6525e487 100644
--- a/app/src/main/java/org/solovyev/android/calculator/math/MathType.java
+++ b/app/src/main/java/org/solovyev/android/calculator/math/MathType.java
@@ -280,7 +280,7 @@ public enum MathType {
         final StartsWithFinder startsWithFinder = new StartsWithFinder(text, i);
 
         for (MathType mathType : getMathTypesByPriority()) {
-            final String s = Collections.find(mathType.getTokens(), startsWithFinder);
+            final String s = find(mathType.getTokens(), startsWithFinder);
             if (s != null) {
                 if (s.length() == 1) {
                     if (hexMode || JsclMathEngine.getInstance().getNumeralBase() == NumeralBase.hex) {
@@ -297,6 +297,17 @@ public enum MathType {
         return new Result(MathType.text, text.substring(i));
     }
 
+    @Nullable
+    private static String find(@Nonnull List<String> list, @Nonnull JPredicate<String> predicate) {
+        for (int i = 0; i < list.size(); i++) {
+            final String token = list.get(i);
+            if(predicate.apply(token)) {
+                return token;
+            }
+        }
+        return null;
+    }
+
     @Nonnull
     private static List<MathType> getMathTypesByPriority() {
         if (mathTypesByPriority == null) {