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import java.math.BigDecimal; | |
import java.math.RoundingMode; | |
class Main { | |
public static void main(String[] args) { | |
BigDecimal bd1 = new BigDecimal(50); | |
BigDecimal bd2 = new BigDecimal(50); | |
BigDecimal bd3 = bd1.add(bd1).add(bd2); | |
System.out.println(bd3.toString()); // 150 | |
System.out.println(bd1.equals(bd2)); // true | |
BigDecimal total = new BigDecimal(0); | |
// Lo mismo que total += bd1 | |
total = total.add(bd1); | |
// Lo mismo que total += 10 | |
total = total.add(new BigDecimal(10)); | |
// Lo mismo que total += 50 | |
total = total.add(new BigDecimal(50)); | |
System.out.println(total.toString()); // 110 | |
BigDecimal resta = total.subtract(new BigDecimal(10)); | |
System.out.println(resta.toString()); // 100 | |
BigDecimal multiplicacion = total.multiply(new BigDecimal(5)); | |
System.out.println(multiplicacion.toString()); // 550 | |
BigDecimal division = multiplicacion.divide(new BigDecimal(10)); | |
System.out.println(division.toString()); // 55 | |
// Multiplicación = 550, división = 55 | |
if (multiplicacion.compareTo(division) < 0) { | |
System.out.println(multiplicacion + " es menor que " + division); | |
} else if (multiplicacion.compareTo(division) == 0) { | |
System.out.println(multiplicacion + " es igual que " + division); | |
} else if (multiplicacion.compareTo(division) > 0) { | |
System.out.println(multiplicacion + " es mayor que " + division); | |
} | |
BigDecimal numero = new BigDecimal("7.3333"); | |
System.out.println("El número original: " + numero.toString()); | |
// Establecer su escala y su forma de redondeo; al llamar | |
// a setScale se redondea | |
BigDecimal bdHalfUp = numero.setScale(3, RoundingMode.HALF_UP); | |
System.out.println("El número con RoundingMode.HALF_UP: " + bdHalfUp.toString()); | |
BigDecimal bdCeiling = numero.setScale(3, RoundingMode.CEILING); | |
System.out.println("El número con RoundingMode.CEILING: " + bdCeiling.toString()); | |
BigDecimal bdUp = numero.setScale(3, RoundingMode.UP); | |
System.out.println("El número con RoundingMode.UP: " + bdUp.toString()); | |
BigDecimal bdFloor = numero.setScale(3, RoundingMode.FLOOR); | |
System.out.println("El número con RoundingMode.FLOOR: " + bdFloor.toString()); | |
} | |
} |
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