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SCJP 1.6 Mock Exams - Console (5 Questions)

5) What will be the output of the following program?

package console;

public class Ques02 {

	public static void main(String[] args) {
		
		int anInt = 100;
		double aDouble = 100.00;
		
		System.console().format("%2d - %1f", anInt, aDouble);
	}
}

1. The program will output ‘100.000000 – 100’.
2. The program will output ‘100 - 100.000000’.
3. The program will throw a IllegalFormatConversionException at run-time.
4. The program will output ‘100 – 100’.

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Answer

Here the ordering of the arguments (anInt and aDouble) matters, not the formatting strings ‘%2 - %1d’. So the first output will be the value of anInt variable followed by a hyphen (‘-‘) followed by the value of aDouble variable.

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