Use java.util.Arrays.deepToString() to dump the multi-dimensional arrays

 

import java.util.Arrays;

public class Main {
  public static void main(String args[]) {
    String s[] = {"a", "b", "c", "d"};
    double d [][]= {
        {0.50, 0.20,  0.20, 0.30},
        {0.50, 1.10,  0.50, 0.80},
        {0.50, 0.70,  0.40},
        {0.50, 0.70},
        {0.50},
    };
    System.out.println(Arrays.toString(s));
    System.out.println(Arrays.deepToString(d));
  }
}

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Use java.util.Arrays.deepToString() to dump the multi-dimensional arrays : Arrays « Collections Data Structure « Java

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