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From my understand, RoundingMode.HALF_UP uses our tradition style of rounding. However, it is not giving me the desired results:

I'm using DecimalFormat() with different parameters(#, #.#, ... etc) and inputting the double 3.5545

// taken from Util    
public static void setRound(int a)      // Set rounding decimal places
    roundTo = a;
    String t = "#";
    if (roundTo > 0)
        t += ".";
        for (int u = 1; u <= roundTo; u++)
            t += "#";
    df = new DecimalFormat(t);
    df.setRoundingMode(RoundingMode.HALF_UP);
public static String round(double d)    // Rounds up answers to set place
    return df.format(d);
// taken from Testing class
 for (int a = 0; a < 5; a++)
    Util.setRound(a);
    System.out.println(Util.round(3.5545));
// results
0 -> 4              
1 -> 3.6   
2 -> 3.55   
3 -> 3.554 *(I want 3.555)*  
4 -> 3.5545
How would I be able to fix this issue (any number trailed by 5 rounds up)? 
Any help would be appreciated.
Thank you.
for (int i = 0; i < 5; i++) {
            BigDecimal bg = new BigDecimal("3.5545").setScale(i, RoundingMode.HALF_UP);
            System.out.println(bg);
Output ;
0 --> 4
1 --> 3.6
2 --> 3.55
3 --> 3.555
4 --> 3.5545
                Note that new BigDecimal(3.5545).toString() returns 3.55449999999999999289457264239899814128875732421875.
– shmosel
                May 31, 2016 at 6:02
        
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