When I run the code below on the command line, it takes in the first argument but then for the second argument, it outputs the same postfix expression and result as the first argument that the user types. How do I fix this? Below is my code for Expression.java and ExpressionTest.java

this is ExpressionTest.java

This is how I tested my program. Notice how it outputs the same result for "10 / 2".

1 usage public static int evaluatePostfix(String[] postfixExpression) throws Exception \{ LinkedStack> stack = new LinkedStack >(); for (int i=0;i