Question: I don't know how to fix the error I'm getting shown below. (line 14) Problems: File 1 Project Errors 1 It ExpressionTest.java - /ldeaProjects/Testing/sre 1
I don't know how to fix the error I'm getting shown below. (line 14)

Problems: File 1 Project Errors 1 It ExpressionTest.java - /ldeaProjects/Testing/sre 1 problem (9 'convertToPostfix(java.lang.String[])' in 'Expression' cannot be applied to '(java.lang.String)' :14
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