CODEWITHSUNDEEP
javanumber-formatting
Kristy Welsh
Kristy Welsh

Reputation: 8362

Format number value from XX.X to .XXX java

I am receiving a value from a server that reads as a percentage, for example 77.5%. How can get the value .775 just using:

String.format(Locale.getDefault(), formatPattern, floatValue);

I've consulted https://docs.oracle.com/javase/tutorial/java/data/numberformat.html, but it doesn't seem to cover my situation.

Note: I can only use the string format as we are placing the pattern into a config file.

Upvotes: 1

Views: 11119

Answers (3)

ahoxha
ahoxha

Reputation: 1938

Does this work for you:

String num = "75.5%";
String res = new DecimalFormat("#.000").format(Double.parseDouble(num.substring(0, num.length()-1))/100);

Upvotes: 0

mhmodsn
mhmodsn

Reputation: 11

We can avoid the division by 100 and just moving the floating point to left two places by using :

double value = java.math.BigDecimal.valueOf(77.5).movePointLeft(2).doubleValue();

Upvotes: 1

VHS
VHS

Reputation: 10184

Try this:

String value = "75%";
Double aNumber = (Double.parseDouble(value.replace("%", "")))/100;

Upvotes: 0

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