```
**Given an integer x, return true if x is palindrome integer.
**
An integer is a palindrome when it reads the same backward as forward.
For example, 121 is a palindrome while 123 is not.
```

```
**Example 1:**
Input: x = 121
Output: true
**Example 2:**
Input: x = -121
Output: false
Explanation: From left to right, it reads -121. From right to left, it becomes 121-. Therefore it is not a palindrome.
**Example 3:**
Input: x = 10
Output: false
Explanation: Reads 01 from right to left. Therefore it is not a palindrome.
**Example 4:**
Input: x = -101
Output: false
**Constraints:**
-231 <= x <= 231 - 1
```

**Solution :
Java Code :**

```
class Solution {
public boolean isPalindrome(int x) {
if (x < 0) {
return false;
}
int number = x;
int reverse = 0;
while (number > 0) {
reverse = reverse * 10 + number % 10;
number /= 10;
}
return x == reverse;
}
}
```

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