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Hello I have a program that displays the area of some land. The number is 1900 square kilometers. I want to write this as 1900 km2 but the two should look like a "to the power of 2" symbol. Is there a way I can insert a symbol like that?
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Math. pow(double a, double b) returns the value of a raised to the power of b . It's a static method on Math class, which means you don't have to instantiate a Math instance to call it. The power of a number is the number of times the number is multiplied by itself.
pow() to take a large exponent. Since 109 fits into an int and is also exactly representable as a double , you can do this: int exp = (int) Math. pow(10, 9); BigInteger answer = BigInteger.
You can create a Character object with the Character constructor: Character ch = new Character('a'); The Java compiler will also create a Character object for you under some circumstances.
Unicode code u00B2 will give you the superscript two symbol. Try the following:
System.out.println("km\u00B2");
Working example
You could alternatively use the extended ASCII code alt + 253 as stated here
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If your output is an html page:
km<sup>2</sup>
or
km²
If your output is a String to the console
System.out.println("km\u00B2");
Other outputs
If you need to print it to other systems (pdf, excel...) and they accept unicode values use the char '\u00B2' for the 2 at the exponent
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You can try to use the "SUPERSCRIPT TWO" Unicode Character (escape code \u00B2) if your font supports it.
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