Thread: How to compile and run java program?

Hey guys im new to java and programming, im taking a introductory course into java and im having trouble with my current assignment. Ok they provided me with a test class and i had to create the main class. so this is what i got.

public class PropertyTax
{
 
private static double totalTax;
 
 
private double AssessedValue;
private double TaxableAmount;
private double TaxRate;
private double Tax;
 
public House(double assvalue, double taxamt, int rate)
{
AssessedValue = assvalue;
TaxableAmount = taxamt;
TaxRate = rate;
 
totalTax = assvalue * rate;
}
 
 
public static double getTotalTax()
{
return totalTax;
}
 
public double getAssessedValue()
{
return AssessedValue;
}
 
public double getTaxableAmount()
{
return TaxableAmount;
}
 
public double getTaxRate()
{
return TaxRate;
}
 
public double getTax()
{
return Tax;
}
 
}

this is the test class provided

import java.text.NumberFormat;
 
class TestPropertytax
{
public static void main(String[] arg)
{
NumberFormat nf = NumberFormat.getCurrencyInstance();
 
PropertyTax p1 = new PropertyTax(100000, 1.05);
p1.calculate();
print(p1, nf);
System.out.println("----------------------------------");
 
PropertyTax p2 = new PropertyTax(150000, 1.05);
p2.calculate();
print(p2, nf);
System.out.println("----------------------------------");
 
System.out.println("Total tax revenue " + nf.format(PropertyTax.totalTax()));
System.out.println("--------- End of report ----------");
}
 
static void print(PropertyTax p, NumberFormat nf)
{
System.out.println("Assessed value " + nf.format(p.getAssessedValue()));
System.out.println("Taxable amount " + nf.format(p.getTaxableAmount()));
System.out.println("Tax rate for each $100.00 is " + nf.format(p.getTaxRate()));
System.out.println("Property tax is " + nf.format(p.getTax()));
}
}

i need a lot of help getting this program to compile. I hope you guys could give me some tips that could help me compile my program which is due in a few.
- Thanks ahead of time guys

to compile this program

javac filename.java

to run this program

java TestPropertytax

I compiled ur program and found the following errors dude:

E:\java>javac homework.java
homework.java:12: invalid method declaration; return type required
public House(double assvalue, double taxamt, int rate)
^
homework.java:51: class, interface, or enum expected
import java.text.NumberFormat;
^
2 errors

To fix this bug, do the following:
For 1st error:
public void House(double assvalue, double taxamt, int rate)
for 2nd error:
Check the import statements. U need to import additional packages.

Ok i added the void. But other than that i have no clue to what i need it to do to compile. Im a complete beginner with java and programming in general. It still doesnt compile when i add the void. What should i do next?

Pal, follow my steps:

1. Copy ur program into the "bin" folder. For eg. copy ur program into "c:\jdk1.6\bin". U can compile ur program from ur current working directory itself. But it is little complex. So we are following the easiest way.
2. Open command prompt. Move to "c:\jdk1.6\bin"
3. To compile ur program do the following:
Type javac filename.java

C:\jdk1.6\bin>javac homework.java

4. To run the program do the following:
Type java classname

C:\jdk1.6\bin>java TestPropertytax

i know how to compile and stuff. I do it off of netbeans. Im saying that if you guys could help me find out whats wrong with my main class.