How to reverse a number  
here is the code in java
```
public class ReverseNumberExample2 
{
public static void main(String[] args) 
{
int number = 123456, reverse = 0;
//we have not mentioned the initialization part of the for loop
for( ;number != 0; number=number/10) 
{
int remainder = number % 10;
reverse = reverse * 10 + remainder;
}
System.out.println("The reverse of the given number is: " + reverse);
}
}
```
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