```
public class PropertyUtil
extends Object
```
Access properties that are set either via command line "-D" parameters or as environment variables. Command line parameters take precedence over environment variables.

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static Optional<Boolean>`	`getBooleanProperty(String key)`
`static boolean`	`getBooleanProperty(String key, boolean defaultValue)`
`static Optional<Double>`	`getDoubleProperty(String key)`
`static double`	`getDoubleProperty(String key, double defaultValue)`
`static Optional<Float>`	`getFloatProperty(String key)`
`static float`	`getFloatProperty(String key, float defaultValue)`
`static Optional<Integer>`	`getIntProperty(String key)`
`static int`	`getIntProperty(String key, int defaultValue)`
`static Optional<Long>`	`getLongProperty(String key)`
`static long`	`getLongProperty(String key, long defaultValue)`
`static Optional<String>`	`getProperty(String key)`
`static String`	`getProperty(String key, String defaultValue)`
`static boolean`	`isPropertySet(String key)`

public static boolean isPropertySet(String key)

public static long getLongProperty(String key,
                                   long defaultValue)

public static Optional<Long> getLongProperty(String key)

public static int getIntProperty(String key,
                                 int defaultValue)

public static Optional<Integer> getIntProperty(String key)

public static Optional<Boolean> getBooleanProperty(String key)

public static float getFloatProperty(String key,
                                     float defaultValue)

public static Optional<Float> getFloatProperty(String key)

public static double getDoubleProperty(String key,
                                       double defaultValue)

public static Optional<Double> getDoubleProperty(String key)

public static boolean getBooleanProperty(String key,
                                         boolean defaultValue)

public static Optional<String> getProperty(String key)

public static String getProperty(String key,
                                 String defaultValue)

Class PropertyUtil