Intermediate quizzes – Java arrays

The following Java exercise(s) are designed for intermediate level programmers. If the level is too hard, then I recommend to select an easier one or you might consider reading my article about this topic, which offers a theoretical explanation including more exercises. Read More: Java Arrays

arrays-blue

 

Quiz 1: A multi dimensional array

What is written to the standard output as the result of executing the following code?

public class MultiDimensionalArray {

	public static void main(String[] args){
		int a = 5;
		int[][] multiArray = new int[15][10];
		for(int row = 1; row <= 14; row ++ ) {
			for(int col = 1; col <= 9; col ++ ) {
				multiArray[row][col] = a;
				if(row >= 4 && col >= 2) {
					multiArray[row][col] = 3;
				}
				if(row >= 7 && col > 5) {
					multiArray[row][col] = 6;
				}
				if(row > 4 && col == 3) {
					multiArray[row][col] = 1;
				}
			}
		}
		System.out.print("-x" + multiArray[5][3]);
		System.out.print("-x" + multiArray[9][8]);
		System.out.print("-x" + multiArray[6][1]);
	}
}

Select the correct answer.



Sar Maroof is a professional software development teacher, gives master classes and publishes technical articles. He is also an expert software developer and worked for several big as well as small companies and later as a freelancer.
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