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2. We have now created a directory named bar inside the foo directory. Our working directory (the directory that the com mand line is operating in) is still /home/foo. How can we change the working directory to be our new directory, bar? 4. Suppose we now create a new file named OurProgram.java in the new directory, bar. In the file, we write a class named OurProgram containing a main method. Then we save the file (or let the IDE save it for us automatically). What will we see if we onter the is command? 3 (command line) > Using the Command Line >6x Incorrect 6. Suppose the program compiles successfully. Now that we've compiled the program, what will we see if we run the Is command