From ea801e7d047477b9968539d003202ac92db710d9 Mon Sep 17 00:00:00 2001
From: vosker <nikita.vaganov16@gmail.com>
Date: Tue, 28 Jul 2020 01:07:04 +0300
Subject: [PATCH 1/4] added solution

---
 src/main/java/core/basesyntax/BinaryString.java | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/main/java/core/basesyntax/BinaryString.java b/src/main/java/core/basesyntax/BinaryString.java
index ebec6bf..c8c316e 100644
--- a/src/main/java/core/basesyntax/BinaryString.java
+++ b/src/main/java/core/basesyntax/BinaryString.java
@@ -7,6 +7,15 @@ public class BinaryString {
      * а возвращает String с представлением этого числа в двоичном виде.
      */
     public String toBinaryString(int value) {
-        return null;
+        if (value == 0) {
+            return "0";
+        }
+
+        StringBuilder str = new StringBuilder();
+        while (value > 0) {
+            str.insert(0, ((value % 2) == 0 ? "0" : "1"));
+            value = value / 2;
+        }
+        return str.toString();
     }
 }

From 725fea8f311a9cbe5283abbfee2d484434b72f70 Mon Sep 17 00:00:00 2001
From: vosker <nikita.vaganov16@gmail.com>
Date: Tue, 28 Jul 2020 01:16:44 +0300
Subject: [PATCH 2/4] added informative name of variables

---
 src/main/java/core/basesyntax/BinaryString.java | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/main/java/core/basesyntax/BinaryString.java b/src/main/java/core/basesyntax/BinaryString.java
index c8c316e..e3af284 100644
--- a/src/main/java/core/basesyntax/BinaryString.java
+++ b/src/main/java/core/basesyntax/BinaryString.java
@@ -11,11 +11,11 @@ public String toBinaryString(int value) {
             return "0";
         }
 
-        StringBuilder str = new StringBuilder();
+        StringBuilder binaryString = new StringBuilder();
         while (value > 0) {
-            str.insert(0, ((value % 2) == 0 ? "0" : "1"));
+            binaryString.insert(0, ((value % 2) == 0 ? "0" : "1"));
             value = value / 2;
         }
-        return str.toString();
+        return binaryString.toString();
     }
 }

From b5805e306463921b75bbb67c9496bab766f66672 Mon Sep 17 00:00:00 2001
From: vosker <nikita.vaganov16@gmail.com>
Date: Tue, 28 Jul 2020 01:20:55 +0300
Subject: [PATCH 3/4] polished a bit

---
 src/main/java/core/basesyntax/BinaryString.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/core/basesyntax/BinaryString.java b/src/main/java/core/basesyntax/BinaryString.java
index e3af284..de9f7cb 100644
--- a/src/main/java/core/basesyntax/BinaryString.java
+++ b/src/main/java/core/basesyntax/BinaryString.java
@@ -14,7 +14,7 @@ public String toBinaryString(int value) {
         StringBuilder binaryString = new StringBuilder();
         while (value > 0) {
             binaryString.insert(0, ((value % 2) == 0 ? "0" : "1"));
-            value = value / 2;
+            value /= 2;
         }
         return binaryString.toString();
     }

From add76349ae6de0affcef9efc13ce324855315546 Mon Sep 17 00:00:00 2001
From: vosker <nikita.vaganov16@gmail.com>
Date: Tue, 28 Jul 2020 09:48:56 +0300
Subject: [PATCH 4/4] fixed redundant if-else

---
 src/main/java/core/basesyntax/BinaryString.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/core/basesyntax/BinaryString.java b/src/main/java/core/basesyntax/BinaryString.java
index de9f7cb..07a375b 100644
--- a/src/main/java/core/basesyntax/BinaryString.java
+++ b/src/main/java/core/basesyntax/BinaryString.java
@@ -13,7 +13,7 @@ public String toBinaryString(int value) {
 
         StringBuilder binaryString = new StringBuilder();
         while (value > 0) {
-            binaryString.insert(0, ((value % 2) == 0 ? "0" : "1"));
+            binaryString.insert(0, value % 2);
             value /= 2;
         }
         return binaryString.toString();