public static Fraction multiply(Fraction a, Fraction b, Fraction... fractions) {
Fraction result = Fraction.multiply(a, b);
for (Fraction c : fractions) {
result = Fraction.multiply(result, c);
}
return result;
}
@Test
public void testMultiply() {
assertEquals(myFraction1.multiply(myFraction2).toString(), "12 / 25");
assertEquals(myFraction3.multiply(myFraction4).toString(), "10 / 49");
myFraction1 = myFraction1.add(myFraction1);
}
public void actionPerformed(ActionEvent com) {
String e = com.getActionCommand();
if (e.equals("1")) {
msg.append("1");
}
if (e.equals("2")) {
msg.append("2");
}
if (e.equals("3")) {
msg.append("3");
}
if (e.equals("4")) {
msg.append("4");
}
if (e.equals("5")) {
msg.append("5");
}
if (e.equals("6")) {
msg.append("6");
}
if (e.equals("7")) {
msg.append("7");
}
if (e.equals("8")) {
msg.append("8");
}
if (e.equals("9")) {
msg.append("9");
}
if (e.equals("0")) {
msg.append("0");
}
// *********************OPERANDS**********************
if (e.equals("*")) {
pushsign = 2;
String peeked = new String(OperandStack.peek());
if (peeked == "*") {
frac2 = Fraction(FracStack.pop());
frac1 = FracStack.pop();
frac3 = frac1.multiply(frac2);
FracStack.push(frac3);
FracStack.push(new Fraction(msg.getText()));
OperandStack.push(peeked);
}
if (peeked == "/") {
frac2 = new Fraction(FracStack.pop());
frac1 = new Fraction(FracStack.pop());
frac3 = frac1.multiply(frac2);
FracStack.push(frac3);
FracStack.push(new Fraction(msg.getText()));
OperandStack.push(peeked);
}
}
if (e.equals("/")) {}
if (e.equals("+")) {}
if (e.equals("-")) {}
if (e.equals("=")) {}
if (e.equals("Frac")) {
msg.append("/");
}
}
