Write a static recursive method that returns the number of digits in the integer passed to it as an argument of type int. Allow for both positive and negative arguments. For example, −120 has three digits. Do not count leading zeros. Embed the method in a
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- 8.Write a static method recReplace that takes a String str, a String sub1, and a String sub2 as parameters, and replaces all occurrences of sub1 in str with sub2. The method should be recursive, which means no loops. public static String recReplace(String str, String sub1, String sub2) {arrow_forwardsolve it without using Arrays and the method should take int and return a String Write a recursive method in java that returns a string that contains the octal representation of a positive integer. Test your method. Hint: An octal number is the base-8 number system, and uses the digits 0 to 7. For example, the number 12 can be converted to octal number as follows: Divide by 8, the remainder represents the first digit so 12/8 = 1 and the remainder is 4 so the first digit is 4. The quotient is 1. Then we divide 1 over 8 we get zero and the remainder is 1. The second digit is 1 and we stop. The equivalent octal number for 12 is 14.arrow_forwardWrite a recursive method that parses a binary number as astring into a decimal integer. The method header is public static int bin2Dec(String binaryString) Write a test program that prompts the user to enter a binary string and displaysits decimal equivalent.arrow_forward
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