solve in java asap please

Searching Challenge Have the function SearchingChallenge(strArr) read in the strArr parameter containing key:value pairs where the key is a string and the value is an integer. Your program should return a string with new key:value pairs separated by a comma such that each key appears only once with the total values summed up. For example: if strArr is ["B:-1", "A:1", "B:3", "A:5"] then your program should return the string A:6,B:2. Your final output string should return the keys in alphabetical order. Exclude keys that have a value of 0 after being summed up.

Examples Input: {"X:-1", "Y:1", "X:-4", "B:3", "X:5"} Output: B:3,Y:1 Input: {"Z:0", "A:-1"} Output: A:-1