Write a class called VLPUtility with the following staticmethods: Java Language
1. concatStrings that will accept a variable length parameterlist of Strings and concatenate them into one string with a spacein between and return it.
2. Overload this method with two parameters, one is a booleannamed upper and one is a variable length parameter list of Strings.If upper is true, return a combined string with spaces in uppercase; otherwise, return the combined string as is.
3. makeWord: accepts a variable length parameter list of charvalues and make a word from these character values, return theresult as a String.
4. Overload this method so that it accepts a variable lengthparameter list of char values, a boolean variable named reverse,and an int variable named repeat.
a. If the boolean variable is true, the combined char valueswill be reversed.
b. Based on the value of the int variable, the combined charvalues will be repeated.
c. The result will be returned. For example, if ‘a’, ‘l’, ‘l’,‘o’, ‘w’ are passed, it will be combined into “allow”. If theboolean variable is true, it will be reversed to “wolla”; if theint variable value is 2, it will be either “allowallow” or“wollawolla”