+ @Override
+ public String toString() {
+ final DecimalFormat df = new DecimalFormat( "0.00" );
+ final StringBuilder sb = new StringBuilder();
+ for( int j = 1; j < size(); ++j ) {
+ for( final Entry<Double, SortedSet<Integer>> entry : getSentrySet( j ) ) {
+ final double key = entry.getKey();
+ final SortedSet<Integer> values = entry.getValue();
+ sb.append( df.format( key ) + "->" );
+ boolean first = true;
+ for( final Integer v : values ) {
+ if ( !first ) {
+ sb.append( "," );
+ }
+ first = false;
+ sb.append( v );
+ }
+ sb.append( " " );
+ }
+ sb.append( "\n" );
+ }
+ return sb.toString();
+ }
+