blakesu/stringcalculator

expression calculator

@Test
public void testCalculate() throws ParseException {
	assertEquals("2", Calculator.calculate(" 1 + 1 ").toString() );
}

@Test
public void testCalculate1() throws ParseException {
	assertEquals("29", Calculator.calculate(" 3*9 +2 ").toString() );
}

@Test
public void testCalculate2() throws ParseException {
	assertEquals("58", Calculator.calculate(" 2* ( 3*9 +2 ) ").toString() );
}

@Test
public void testCalculate3() throws ParseException {
	assertEquals("2.5", Calculator.calculate(" 5/2 ").toString() );
}

@Test
public void testCalculate4() throws ParseException {
	assertEquals("3.4", Calculator.calculate(" 8.4-5 ").toString() );
}