solve in java, and solve exactly like showed in picture using the exception

Input Specification: Inputt: an input string input2: a string containing the character for which the distance has to be calculated Language: JAVA11- Compler son 1 import java.io. 2 import java.util. 1/ Read only region start class UserMainCode + 5 6 7 8 Output Specification: Return the number of distinct characters that exist 20 public int Searchetteristrim // Read only region and // Write code here.. throw new Unsupportedoper Example 1: input1: my name is granar Input2: a 12 13 3 Output: 7 Explanation: The largest substring that contains all the occurrences of 'a' is 'ame is grana', and the distinct characters between the two occurrences of 'a' are-m, e, i, s, p, r, and n. Example 2: input1: the capital of minnesota is saint paul input2: y Output: -1 Code Results Your Testcase Explanation: The character y does not occur in the given string. Thus the output is -1. Console Output: 91.82878- 4 Language: JAVA11 - Compiler: Java - 11 1 import java.io. 2 import java.util.. 3 // Read only region start 5 class UserMaincode 6 { 7 8 public int SearchLetter(String input1, string input24 9 // Read only region end 10 // Write code here... 11 throw new UnsupportedOperationException("Searchletter(String input1, String input21) 12 } 13 } Comple