Question

I have a matrix : 5×15 :

for(int i=0;i<5;i++){
for(int j=0;j<15;j++){
String[][] Matrix = { { "0", "0", "", "0", "5", "6", "", "", "55", "", "", "", "", "" }, { "1723", "0", "", "0", "0", "3", "", "", "2", "", "", "", "", "" },
        { "10", "0", "", "0", "0", "0", "", "", "0", "", "", "", "", "" }, { "69", "0", "", "0", "0", "20", "", "", "100", "", "", "", "", "" },
        { "35", "0", "", "0", "15", "20", "", "", "57", "", "", "", "", "" } };
system.out.println(Matrix);
}}

and I need to print each line : line1,line2,..line5

Answer 1

Remove the system.out.println(Matrix); and add at the end (outside the two loops):

for (int i = 0; i < matrix.length; ++i) {
  System.out.println(Arrays.asList(matrix[i]));
}

Arrays are not printed readable, but collections like List are.

PS: by convention, variables start with lowercase, types and constants with uppercase