About Question enthuware.ocpjp.v7.2.1410 :

[RobynBackhouse]

What does the 9 do in this line?

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System.out.printf("\"$%(,9.2f\"", -1222.2);

If I change it to a 4
e.g.

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System.out.printf("\"$%(,4.2f\"", -1222.2);

The output is exactly the same. Both output

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"$(1,222.20)"

Thanks.

[admin]

That's because the output already has 9 characters. Try 10 or more instead of 9. Then you will see the difference:

System.out.printf("\"$%(,12.2f\"", -1222.2);

HTH,
Paul.

[kumarkhiani]

With reference to :
System.out.printf("\"%+07d\"", 100); // 7 is the total width. It will print: +000100

Please confirm that we cannot use "-" left justification when we use zero padding. Which means we cannot use "-" and "0" at the same time.

[admin]

With reference to :
System.out.printf("\"%+07d\"", 100); // 7 is the total width. It will print: +000100

Please confirm that we cannot use "-" left justification when we use zero padding. Which means we cannot use "-" and "0" at the same time.

Not sure I understand you correctly. Can you please write a line of code to show what you mean?
-Paul.