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How do I reverse a number in java

Can anyone explain to me how to reverse a number start with zero in java. I trying to reverse a number 025 but output is only 52. But output should be 520 explanation much appreciated.

Solution

  • You are mixing types. "025" is not a number, it's a String. In a number you simply cannot distinguish between 25, 025, 0025, 00025, ... Implement your assignment as a String operation.

    public String reverseString(String s) {
    // put your code here
}

    You may find very useful the Oracle tutorial on Strings here: https://docs.oracle.com/javase/tutorial/java/data/strings.html