How to Cal methods within a method in the same class

[Manfizy]

Hi pple,
I am writing a program that does calcution of certain functions.The functions are related and somehow i have to interlink the methods.
So my question is, How can i call a method within another method in the same class

Your response will be higly appreciated
thnx

[mtyoung]

you can call by this.methodName(yyy,zzz)
or just methodName (yyy, zz)

[Manfizy]

Am stil confused. Let me give u an example so tht u can know what am talking about

public class XenonConcUI extends javax.swing.JFrame {

public XenonConcUI() {
        initComponents();
}
public void calEqulibrium(double Phi_t, double IodConc_t_1, double XenConc_t_1) {

//here i calculate Phi_t, IodConc_t_1 and XenConc_t_1

}
public double result(double xenPoison) {

//In this method, i calculate xenPoist but to calculate it i need the values of 
Phi_t, IodConc_t_1 and XenConc_t_1 from the method above

Now my question is ,how do i access the values from the other method(calcEquillibrium)?.
I just hope my explanation is clear.

thanx

[CJSLMAN]

You're methods don't seen t be static, so probably you have to instantiate the class and then call the method:

XenonConcUI xc = new XenonConcUI();
xc.calEqulibrium(x, y z);

Now... calEquilibreium doesn't return any values ... you might want to change that for your purposes.

Luck,
CJSL

[mtyoung]

would you mind to add some global variables

[azzaiel]

You can call a method in the same class w/ this example

public class foo {

public int method1(int number) {

int num1 = this.method2();
int num2 = this.method3();

return 0;
}

private int method2() {
return 0;
}

public int method3() {
return 0;
}
}

or if your class is a main

public class Runner {

public static void main(String[] args) {

method1();
method2();

}

private static void method1() {

}

public static void method2() {

}

}

hope this helps

[Manfizy]

My dear friends,thanks for your response but am still in darkness. I just want to get this concept once and for all and i tried to creat a practice program and its still giving me problems. I have added the code below and i kindly request tht u edit my code to the way it should be without bugs. this way i will get the concept.

package MonthlyPayments;

/**
 *
 * @author MUNYA00M
 */
public class Payments {
    static double rate;
    static double loanAmt;
    static double futureValue;
    static double numPeriods;
public double input(double rate, double loanAmt,double futureValue,double numPeriods){
    rate = 10;
    loanAmt = 2000;
    futureValue = 2500;
    numPeriods = 24;
}  
public double computePayment(double loanAmt,
                             double rate,
                             double futureValue,
                             int numPeriods) {
    double interest = rate / 100.0;
    double partial1 = Math.pow((1 + interest), -numPeriods);
    double denominator = (1 - partial1) / interest;
    double answer = (-loanAmt / denominator)
                    - ((futureValue * partial1) / denominator);
    return answer;
}


    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
        Payments py = new Payments();
        double rate =this.input();
        double loanAmt =this.input(loanAmt);

        py.input(rate,loanAmt,futureValue,numPeriods);

        py.computePayment(answer);
        
        System.out.println(answer);
    }

}

Just correct where am going wrong
thanks a bunch

[azzaiel]

:) try this

public class Payments {

	static double rate;
	static double loanAmt;
	static double futureValue;
	static double numPeriods;

	/**
	 * @param args
	 *            the command line arguments
	 */
	public static void main(String[] args) {
		// TODO code application logic here

		rate = 10;
		loanAmt = 2000;
		futureValue = 2500;
		numPeriods = 24;

		double answer = computePayment(loanAmt, rate, futureValue, numPeriods);

		System.out.println(answer);

	}

	private static double computePayment(double loanAmt, double rate,
			double futureValue, double numPeriods) {
		double interest = rate / 100.0;
		double partial1 = Math.pow((1 + interest), -numPeriods);
		double denominator = (1 - partial1) / interest;
		double answer = (-loanAmt / denominator)
				- ((futureValue * partial1) / denominator);
		return answer;
	}

}

[Manfizy]

Thanx alot.i finally got it.