Formatted Version of Java Code
This page contains some Badly Formatted Java code, and its Java Formatted version. The output was produced by our Java Formatter.
Badly Formatted Java Code
This code is a sample taken untouched from a Java source web site. The author is an admitted junior programmer, but we all have them in our organizations. The nesting structure is pretty bad; most programmers's will have to reformat it to figure out what is going on. There goes half an hour of productivity.
import javax.swing.JOptionPane;
public class Program1{
public static void main(String args[])
{
String first,second;
double choice ;
double radius,width,area, length;
String value=" "; //intialize the string
value =JOptionPane.showInputDialog("Please chose one of the options:"+"\n" +
"a)Enter 1 to calculate the area of the Circle"+ "\n"+
"b)Enter 2 to calculate the area of the Triangle"+ "\n"+
"c)Enter 3 to calculate the area of the Square"+ "\n"+
"d)Enter 4 to calculate the area of the Rectangle"+"\n"+
"e)Enter 5 to calculate the area of the Cube"+"\n"+
"f)Enter 6 to exit the program");
choice=Double.parseDouble(value);
while(choice!=6)
{
//if(choice!=1||choice!=2||choice!=3||choice!=4||choice!=5)
// JOptionPane.showMessageDialog(null,"Wrong option entered", " error",
// JOptionPane.ERROR_MESSAGE);
if(choice==1)
{//calculate the area of circle
first = JOptionPane.showInputDialog("Enter the value of radius");
radius = Double.parseDouble(first);
area = Math.PI*radius*radius;
//print out the result
JOptionPane.showMessageDialog(null,"The area of the Circle: "+area,"result",
JOptionPane.INFORMATION_MESSAGE);
}
else if(choice==2)
{ //calculate the area of triangle
first=JOptionPane.showInputDialog("Enter the value of lenght");
second=JOptionPane.showInputDialog("Enter the value of width");
length = Double.parseDouble(first);
width=Double.parseDouble(second);
area= (width*length)/2;
JOptionPane.showMessageDialog(null,"The area of triangle: "+ area,"result",
JOptionPane.INFORMATION_MESSAGE);
}
else if(choice==3)
{//calculate the area of square
first = JOptionPane.showInputDialog("Enter the value of length");
length = Double.parseDouble(first);//ge string into integer
area=length*length;
JOptionPane.showMessageDialog(null,"The area of the square: "+ area," result",
JOptionPane.INFORMATION_MESSAGE);
}
else if(choice==4)
{//calculate the area of rectangle
first=JOptionPane.showInputDialog("Enter the value of length");
second=JOptionPane.showInputDialog("Enter the value of width");
length=Double.parseDouble(first);
width=Double.parseDouble(second);
area=width*length;
JOptionPane.showMessageDialog(null,"The area of the rectangle: "+ area,"result",
JOptionPane.INFORMATION_MESSAGE);
}
else if(choice==5)
{//calculat the area of cube
first=JOptionPane.showInputDialog("Enter the value of length");
length=Double.parseDouble(first);
area=6*length;
JOptionPane.showMessageDialog(null,"The area of the cube: "+ area,"result",
JOptionPane.INFORMATION_MESSAGE);
}
value =JOptionPane.showInputDialog("Please chose one of the options:"+"\n" +
"a)Enter 1 to calculate the area of the Circle"+ "\n"+
"b)Enter 2 to calculate the area of the Triangle"+ "\n"+
"c)Enter 3 to calculate the area of the Square"+ "\n"+
"d)Enter 4 to calculate the area of the Rectangle"+"\n"+
"e)Enter 5 to calculate the area of the Cube"+"\n"+
"f)Enter 6 to exit the program");
choice=Double.parseDouble(value);
}//end of while loop
System.out.println("Program terminated\n");
System.exit(0);
}//end of main
}
Java Formatted Version
This is the result of using SD's JavaFormatter tool on the sample badly formatted Java, using just the default settings. You can see that the formatter has chosen very different line breaks, based on the language structure. The block structure is now clearly visible. Notice the commented out code; the formatter has left it alone, but aligned the comments, so even it is more readable. A programmer might actually be able to work on this version.
import javax.swing.JOptionPane;
public class Program1
{
public static void main(String args[]) {
String first,second;
double choice;
double radius,width,area,length;
String value = " "; //intialize the string
value = JOptionPane.showInputDialog("Please chose one of the options:"+"\n"+"a)Enter 1 to calculate the area of the Circle"+"\n"+"b)Enter 2 to calculate the area of the Triangle"+"\n"+"c)Enter 3 to calculate the area of the Square"+"\n"+"d)Enter 4 to calculate the area of the Rectangle"+"\n"+"e)Enter 5 to calculate the area of the Cube"+"\n"+"f)Enter 6 to exit the program");
choice = Double.parseDouble(value);
while (choice != 6) {
//if(choice!=1||choice!=2||choice!=3||choice!=4||choice!=5)
// JOptionPane.showMessageDialog(null,"Wrong option entered", " error",
// JOptionPane.ERROR_MESSAGE);
if (choice == 1) { //calculate the area of circle
first = JOptionPane.showInputDialog("Enter the value of radius");
radius = Double.parseDouble(first);
area = Math.PI*radius*radius;
//print out the result
JOptionPane.showMessageDialog(null,"The area of the Circle: "+area,"result",JOptionPane.INFORMATION_MESSAGE);
} else
if (choice == 2) { //calculate the area of triangle
first = JOptionPane.showInputDialog("Enter the value of lenght");
second = JOptionPane.showInputDialog("Enter the value of width");
length = Double.parseDouble(first);
width = Double.parseDouble(second);
area = (width*length)/2;
JOptionPane.showMessageDialog(null,"The area of triangle: "+area,"result",JOptionPane.INFORMATION_MESSAGE);
} else
if (choice == 3) { //calculate the area of square
first = JOptionPane.showInputDialog("Enter the value of length");
length = Double.parseDouble(first); //ge string into integer
area = length*length;
JOptionPane.showMessageDialog(null,"The area of the square: "+area," result",JOptionPane.INFORMATION_MESSAGE);
} else
if (choice == 4) { //calculate the area of rectangle
first = JOptionPane.showInputDialog("Enter the value of length");
second = JOptionPane.showInputDialog("Enter the value of width");
length = Double.parseDouble(first);
width = Double.parseDouble(second);
area = width*length;
JOptionPane.showMessageDialog(null,"The area of the rectangle: "+area,"result",JOptionPane.INFORMATION_MESSAGE);
} else
if (choice == 5) { //calculat the area of cube
first = JOptionPane.showInputDialog("Enter the value of length");
length = Double.parseDouble(first);
area = 6*length;
JOptionPane.showMessageDialog(null,"The area of the cube: "+area,"result",JOptionPane.INFORMATION_MESSAGE);
}
value = JOptionPane.showInputDialog("Please chose one of the options:"+"\n"+"a)Enter 1 to calculate the area of the Circle"+"\n"+"b)Enter 2 to calculate the area of the Triangle"+"\n"+"c)Enter 3 to calculate the area of the Square"+"\n"+"d)Enter 4 to calculate the area of the Rectangle"+"\n"+"e)Enter 5 to calculate the area of the Cube"+"\n"+"f)Enter 6 to exit the program");
choice = Double.parseDouble(value);
} //end of while loop
System.out.println("Program terminated\n");
System.exit(0);
} //end of main
}
