/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		double[][] matriz = new double[2][2];
 
		matriz[0][0] = 0.1;
		matriz[0][1] = 0.2;
		matriz[1][0] = 0.3;
		matriz[1][1] = 0.4;
 
		for ( int i = 0; i < matriz.length; i++){
			System.out.println(Arrays.toString(matriz[i]));	
		}
 
	}
}

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