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Suppose that we have an instance of the class as shown below: head - 6 'java' ref- G 'fortran 'go' tail Q 'python' null What

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Suppose that we have an instance of the class as shown below: head - 6 'java' ref- G 'fortran 'go' tail Q 'python' null What is the effect of the following lines of code? ref.element = ref.next.element; ref.next = ref.next.next

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