TextIO.getDouble

Question

I am doing an assignment for school and I need to make a code for this question:

Hold your arm straight out and measure the circumference of your resting bicep. Flex your bicep and measure the circumference again. Write a program to
determine the percentage increase of your bicep circumference resulting from the flex. The formula would be: percentage increase = flex / resting * 100. Display the result. Use TextIO and System.out.

Can someone explain how to use TextIO?

Answer 1

copy this code to file: TextIO.java
http://math.hws.edu/eck/cs124/javanotes8/source/chapter2/textio/TextIO.java

where you run your code sources, create folder: textio
add the TextIO.java file there

in your code add at begin of code import:
import textio.TextIO;

(-) here are additional install remarks
http://math.hws.edu/eck/cs124/javanotes8/c2/s6.html#basics.6.6

//example of usage
import textio.TextIO;

public class TexIO_test {
public static void main(String[] args) {

System.out.println("Enter double number:");
double y = TextIO.getDouble();
System.out.println(y);
}
}

here in 2.4.2 is some other examples:
http://math.hws.edu/eck/cs124/javanotes8/c2/s4.html#basics.4.2

API sumary
http://math.hws.edu/eck/cs124/javanotes8/TextIO_Javadoc/index.html

source book
http://math.hws.edu/eck/cs124/javanotes8/index.html