/*
 */
public class ArraySnippets {

	public static void main(String[] args) {
		
		test1( );
		test2( );
	}
	
	public static void test1( ) {
		char[][] a = new char[5][8];

		for ( int r = 0; r < a.length; r++ )
		    for ( int c = 0; c < a[r].length; c++ )
		        a[r][c] = ' ';
	}
	
	public static void test2( ) {
		char[ ][ ] a = new char[5][ ];
		a[0] = new char[8];
		a[1] = new char[3];
		a[2] = new char[5];
		a[3] = new char[0];
		a[4] = null;
		
		for ( int r = 0; r < a.length; r++ )
			if (a[r] != null) System.out.println( a[r].length );
			else System.out.println( "null" );

		int[ ][ ] quizScores = { 
					{ 90, 82, 75, 66 },
					{ 85 },
					{ 45, 77, 99 } };
		for ( int r = 0; r < quizScores.length; r++ ) {
			System.out.print( "Scores for student " + r + ":");
			for ( int c = 0; c < quizScores[r].length; c++ )
				System.out.print( " " + quizScores[r][c] );
			System.out.println( );
		}
	}
}