java.lang.NullPointerException error, how to fix?

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One bug that I can spot is that the following line:

temp.next = new Node(data, head);

should be executed right after the while loop - not inside it!


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Sed command garbled with very easy mutiline regex in bash

regex bash sed

I'm again garbled with sed command, because most probably i have very old version of sed but according to my limitations i couldn't change the version of 'sed' (!)

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