Question: Write a method f that accepts an ArrayList containing String objects . The method should return a String containing the first character of each string

Write a method f that accepts an ArrayList containing String objects . The method should return a String containing the first character of each string in the ArrayList, in the order in which they appear. Thus, if the ArrayList contains the Strings : Hello world goodbye the return value of the method would be the String Hwg. MUST BE IN JAVA

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