public static double[][] data = null;
for (int i=0; i<SearchPanelMAauslast.data.length; i++){
for (int j=0; j<SearchPanelMAauslast.data.length; j++){
String test = SearchPanelMAauslast.data[i][j].toString();
double value = Double.parseDouble(test);
data[i][j] = value;
}
}
public static void main(String[] args) {
Object[][] o = ...
double[][] d = new double[...][...];
for(int i = 0; i < d.length; ++i) {
for(int j = 0; j < d[i].length; ++j) {
d[i][j] = (Double) o[i][j];
System.out.println(d[i][j]);
}
}