Merge pull request #4145 from ziameraj16/ziameraj16-challenge-114

Java solution for Next Palindrome Number

3 files changed, 73 insertions, 24 deletions

diff --git a/challenge-114/ziameraj16/README.md b/challenge-114/ziameraj16/README.md
index 522cc9b303..d066640c97 100644
--- a/challenge-114/ziameraj16/README.md
+++ b/challenge-114/ziameraj16/README.md
@@ -1,49 +1,47 @@
-# Canonical Path
+# Next Palindrome Number
 ## Java Solution
 
 To compile the code run
 ```java
-javac CanonicalPath.java
+javac NextPalindromeNumber.java
 ```
 To run
 ```java
-java CanonicalPath
+java NextPalindromeNumber
 ```
 ### Example
 ```bash
-/perlweeklychallenge-club/challenge-112/ziameraj16/java$ java CanonicalPath
-Enter a string
-/a/
-/a
-/perlweeklychallenge-club/challenge-112/ziameraj16/java$ java CanonicalPath
-Enter a string
-/a/b//c/
-/a/b/c
-/perlweeklychallenge-club/challenge-112/ziameraj16/java$ java CanonicalPath
-Enter a string
-/a/b/c/../..
-/a
+/perlweeklychallenge-club/challenge-114/ziameraj16/java$ javac NextPalindromeNumber.java
+/perlweeklychallenge-club/challenge-114/ziameraj16/java$ java NextPalindromeNumber
+Enter the number
+1234
+1331
+/perlweeklychallenge-club/challenge-114/ziameraj16/java$ java NextPalindromeNumber
+Enter the number
+999
+1001
 ```
 
-# Climb Stairs
+# Higher Integer Sets Bits
 ## Java Solution
 
 To compile the code run
 ```java
-javac ClimbStairs.java
+javac HigherIntegerSetBits.java
 ```
 To run
 ```java
-java ClimbStairs
+java HigherIntegerSetBits
 ```
 ### Example
 ```bash
-/perlweeklychallenge-club/challenge-112/ziameraj16/java$ java ClimbStairs
-Enter total number of stairs
+/perlweeklychallenge-club/challenge-114/ziameraj16/java$ javac HigherIntegerSetBits.java
+/perlweeklychallenge-club/challenge-114/ziameraj16/java$ java HigherIntegerSetBits
+Enter the number
 3
-3
-/perlweeklychallenge-club/challenge-112/ziameraj16/java$ java ClimbStairs
-Enter total number of stairs
-4
 5
+/perlweeklychallenge-club/challenge-114/ziameraj16/java$ java HigherIntegerSetBits
+Enter the number
+12
+17
 ```
diff --git a/challenge-114/ziameraj16/java/HigherIntegerSetBits.java b/challenge-114/ziameraj16/java/HigherIntegerSetBits.java
new file mode 100644
index 0000000000..4d8f03fa63
--- /dev/null
+++ b/challenge-114/ziameraj16/java/HigherIntegerSetBits.java
@@ -0,0 +1,21 @@
+import java.util.Scanner;
+
+public class HigherIntegerSetBits {
+
+    public static void main(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+        System.out.println("Enter the number");
+        int number = scanner.nextInt();
+        System.out.println(findNextNumberWithSameOnes(number));
+
+    }
+
+    public static int findNextNumberWithSameOnes(int n) {
+        long value = Integer.toBinaryString(n).chars().filter(ch -> ch == '1').count();
+        while(true) {
+            if (value == Integer.toBinaryString(++n).chars().filter(ch -> ch == '1').count()) {
+                return n;
+            }
+        }
+    }
+}
diff --git a/challenge-114/ziameraj16/java/NextPalindromeNumber.java b/challenge-114/ziameraj16/java/NextPalindromeNumber.java
new file mode 100644
index 0000000000..9c90da4d79
--- /dev/null
+++ b/challenge-114/ziameraj16/java/NextPalindromeNumber.java
@@ -0,0 +1,30 @@
+import java.util.Scanner;
+
+public class NextPalindromeNumber {
+
+    public static void main(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+        System.out.println("Enter the number");
+        int number = scanner.nextInt();
+        System.out.println(findNextPalindromeNumber(number));
+    }
+
+    public static int findNextPalindromeNumber(int n) {
+        while (true) {
+            if (isPalindrome(++n)) {
+                return n;
+            }
+        }
+    }
+
+    private static boolean isPalindrome(int number) {
+        String numberAsString = String.valueOf(number);
+        for (int i = 0; i < numberAsString.length() / 2; i++) {
+            if (numberAsString.charAt(i) != numberAsString.charAt(numberAsString.length() - i - 1)) {
+                return false;
+            }
+        }
+        return true;
+
+    }
+}