Question

Hi,

I can't figure out how to make spaces between the characters of "Davy Crockett." I can get the output as "Davy Crockett" but not with the added spaces. Could you give me some suggestions and feedback please? Thank you.

public class Practice3 {

public static void main (String [] args) {

System.out.println(pentagonArea(3.14));

System.out.println("Davy Crockett");

}

public static double pentagonArea(double a) {

return (Math.sqrt(5*(5 + 2 * Math.sqrt(a)) ) * a *a)/4;

}

public static String addSpaces(String s) {

String str=" ";

for (int i = 0; i<s.length(); i++) {

str=str+s.charAt(i)+ " ";

}

return str.trim();

}

}

Answer 1

Program:

public class Practice3 { // Here declaring the class name as Practice3
public static void main (String [] args) { // Start of main()  
System.out.println(pentagonArea(3.14)); // Here calling the pentagonArea() method
System.out.println(addSpaces("Davy Crockett"));
// Here calling the addSpaces() method in the print statement
}// End of main()  
public static double pentagonArea(double a) { // Definition of the method pentagonArea()
return (Math.sqrt(5*(5 + 2 * Math.sqrt(a)) ) * a *a)/4;
//Here returning value of pentagonArea to the main()
}
public static String addSpaces(String s) { // Definition of the method addSpaces()
String str=" ";
for (int i = 0; i<s.length(); i++) {
str=str+s.charAt(i)+ " "; //Here make spaces between the characters of String s
}
return str.trim(); //Here returning value of str to the main()
}
} // End of class Practice3

Output:

$%2 Administrator: Windows Command Processor F:\java〉javac Practic e3-Java F:\java〉java Practic e3 16.11072766097994 Davy Cr ocke t C ro c k e t t F O C t F:\java〉$