BAEL-6846 - Convert from float to BigDecimal
This commit is contained in:
parent
4ce8b0e70a
commit
a7940d9658
|
@ -1,7 +0,0 @@
|
||||||
## Shallow vs Deep Copy
|
|
||||||
|
|
||||||
This module contains an article about converting float to BigDecimal in Java
|
|
||||||
|
|
||||||
### Relevant articles:
|
|
||||||
|
|
||||||
- [Converting from Float to BigDecimal in Java](https://drafts.baeldung.com/?p=175240&preview=true)
|
|
|
@ -1,16 +0,0 @@
|
||||||
<?xml version="1.0" encoding="UTF-8"?>
|
|
||||||
<project xmlns="http://maven.apache.org/POM/4.0.0"
|
|
||||||
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
|
|
||||||
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
|
|
||||||
<modelVersion>4.0.0</modelVersion>
|
|
||||||
<artifactId>convert-float-to-bigdecimal</artifactId>
|
|
||||||
<name>convert-float-to-bigdecimal</name>
|
|
||||||
<packaging>jar</packaging>
|
|
||||||
|
|
||||||
<parent>
|
|
||||||
<groupId>com.baeldung</groupId>
|
|
||||||
<artifactId>parent-modules</artifactId>
|
|
||||||
<version>1.0.0-SNAPSHOT</version>
|
|
||||||
</parent>
|
|
||||||
|
|
||||||
</project>
|
|
|
@ -1,14 +0,0 @@
|
||||||
<?xml version="1.0" encoding="UTF-8"?>
|
|
||||||
<configuration>
|
|
||||||
<appender name="STDOUT"
|
|
||||||
class="ch.qos.logback.core.ConsoleAppender">
|
|
||||||
<encoder>
|
|
||||||
<pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
|
|
||||||
</pattern>
|
|
||||||
</encoder>
|
|
||||||
</appender>
|
|
||||||
|
|
||||||
<root level="INFO">
|
|
||||||
<appender-ref ref="STDOUT" />
|
|
||||||
</root>
|
|
||||||
</configuration>
|
|
|
@ -1,4 +1,4 @@
|
||||||
package com.baeldung.convertfloattobigdecimal;
|
package com.baeldung.floattobigdecimal;
|
||||||
|
|
||||||
import static org.junit.jupiter.api.Assertions.assertEquals;
|
import static org.junit.jupiter.api.Assertions.assertEquals;
|
||||||
import static org.junit.jupiter.api.Assertions.assertNotEquals;
|
import static org.junit.jupiter.api.Assertions.assertNotEquals;
|
||||||
|
@ -7,7 +7,7 @@ import java.math.BigDecimal;
|
||||||
|
|
||||||
import org.junit.jupiter.api.Test;
|
import org.junit.jupiter.api.Test;
|
||||||
|
|
||||||
class ConvertFloatToBigDecimalUnitTest {
|
class FloatToBigDecimalUnitTest {
|
||||||
|
|
||||||
@Test
|
@Test
|
||||||
public void whenFloatComparedWithDifferentValues_thenCouldMatch() {
|
public void whenFloatComparedWithDifferentValues_thenCouldMatch() {
|
||||||
|
@ -16,12 +16,16 @@ class ConvertFloatToBigDecimalUnitTest {
|
||||||
}
|
}
|
||||||
|
|
||||||
@Test
|
@Test
|
||||||
public void whenCreatedFromFloat_thenCouldNotMatch() {
|
public void whenCreatedFromCertainFloatValues_thenMatches() {
|
||||||
float floatToConvert = 0.5f;
|
float floatToConvert = 0.5f;
|
||||||
BigDecimal bdFromFloat = new BigDecimal(floatToConvert);
|
BigDecimal bdFromFloat = new BigDecimal(floatToConvert);
|
||||||
assertEquals("0.5", bdFromFloat.toString());
|
assertEquals("0.5", bdFromFloat.toString());
|
||||||
floatToConvert = 1.1f;
|
}
|
||||||
bdFromFloat = new BigDecimal(floatToConvert);
|
|
||||||
|
@Test
|
||||||
|
public void whenCreatedFromCertainFloatValues_thenDoesNotMatch() {
|
||||||
|
float floatToConvert = 1.1f;
|
||||||
|
BigDecimal bdFromFloat = new BigDecimal(floatToConvert);
|
||||||
assertNotEquals("1.1", bdFromFloat.toString());
|
assertNotEquals("1.1", bdFromFloat.toString());
|
||||||
}
|
}
|
||||||
|
|
||||||
|
@ -39,10 +43,18 @@ class ConvertFloatToBigDecimalUnitTest {
|
||||||
assertNotEquals("1.1", bdByValueOf.toString());
|
assertNotEquals("1.1", bdByValueOf.toString());
|
||||||
}
|
}
|
||||||
|
|
||||||
|
@Test
|
||||||
|
public void whenFloatCastToDouble_thenGotADifferentNumber() {
|
||||||
|
float floatToConvert = 1.1f;
|
||||||
|
double doubleCast = floatToConvert;
|
||||||
|
assertEquals("1.100000023841858", Double.toString(doubleCast));
|
||||||
|
}
|
||||||
|
|
||||||
@Test
|
@Test
|
||||||
public void whenCreatedByValueOfAndIsDouble_thenMatches() {
|
public void whenCreatedByValueOfAndIsDouble_thenMatches() {
|
||||||
double doubleToConvert = 1.1d;
|
double doubleToConvert = 1.1d;
|
||||||
BigDecimal bdByValueOf = BigDecimal.valueOf(doubleToConvert);
|
BigDecimal bdByValueOf = BigDecimal.valueOf(doubleToConvert);
|
||||||
assertEquals("1.1", bdByValueOf.toString());
|
assertEquals("1.1", bdByValueOf.toString());
|
||||||
}
|
}
|
||||||
|
|
||||||
}
|
}
|
|
@ -1,7 +0,0 @@
|
||||||
## Shallow vs Deep Copy
|
|
||||||
|
|
||||||
This module contains an article about shallow vs deep copy of Java objects
|
|
||||||
|
|
||||||
### Relevant articles:
|
|
||||||
|
|
||||||
- [Creating a deep vs shallow copy of an object in Java](https://drafts.baeldung.com/?p=172294&preview=true)
|
|
|
@ -1,16 +0,0 @@
|
||||||
<?xml version="1.0" encoding="UTF-8"?>
|
|
||||||
<project xmlns="http://maven.apache.org/POM/4.0.0"
|
|
||||||
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
|
|
||||||
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
|
|
||||||
<modelVersion>4.0.0</modelVersion>
|
|
||||||
<artifactId>shallow-deep-copy</artifactId>
|
|
||||||
<name>shallow-deep-copy</name>
|
|
||||||
<packaging>jar</packaging>
|
|
||||||
|
|
||||||
<parent>
|
|
||||||
<groupId>com.baeldung</groupId>
|
|
||||||
<artifactId>parent-modules</artifactId>
|
|
||||||
<version>1.0.0-SNAPSHOT</version>
|
|
||||||
</parent>
|
|
||||||
|
|
||||||
</project>
|
|
|
@ -1,23 +0,0 @@
|
||||||
package com.baeldung.shallowdeepcopy;
|
|
||||||
|
|
||||||
public class Dependency implements Cloneable {
|
|
||||||
private int value = 13;
|
|
||||||
|
|
||||||
public Dependency(int value) {
|
|
||||||
super();
|
|
||||||
this.value = value;
|
|
||||||
}
|
|
||||||
|
|
||||||
public int getValue() {
|
|
||||||
return value;
|
|
||||||
}
|
|
||||||
|
|
||||||
public void setValue(int value) {
|
|
||||||
this.value = value;
|
|
||||||
}
|
|
||||||
|
|
||||||
@Override
|
|
||||||
protected Object clone() throws CloneNotSupportedException {
|
|
||||||
return super.clone();
|
|
||||||
}
|
|
||||||
}
|
|
|
@ -1,31 +0,0 @@
|
||||||
package com.baeldung.shallowdeepcopy;
|
|
||||||
|
|
||||||
public class Main implements Cloneable {
|
|
||||||
private Dependency dependency;
|
|
||||||
|
|
||||||
public Main(Dependency dependency) {
|
|
||||||
super();
|
|
||||||
this.dependency = dependency;
|
|
||||||
}
|
|
||||||
|
|
||||||
@Override
|
|
||||||
public Object clone() throws CloneNotSupportedException {
|
|
||||||
return super.clone();
|
|
||||||
}
|
|
||||||
|
|
||||||
public Object deepClone() throws CloneNotSupportedException {
|
|
||||||
Main dependentClone = (Main) super.clone();
|
|
||||||
Dependency dependencyClone = (Dependency) this.dependency.clone();
|
|
||||||
dependentClone.setDependency(dependencyClone);
|
|
||||||
return dependentClone;
|
|
||||||
}
|
|
||||||
|
|
||||||
public Dependency getDependency() {
|
|
||||||
return dependency;
|
|
||||||
}
|
|
||||||
|
|
||||||
public void setDependency(Dependency dependency) {
|
|
||||||
this.dependency = dependency;
|
|
||||||
}
|
|
||||||
|
|
||||||
}
|
|
|
@ -1,14 +0,0 @@
|
||||||
<?xml version="1.0" encoding="UTF-8"?>
|
|
||||||
<configuration>
|
|
||||||
<appender name="STDOUT"
|
|
||||||
class="ch.qos.logback.core.ConsoleAppender">
|
|
||||||
<encoder>
|
|
||||||
<pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
|
|
||||||
</pattern>
|
|
||||||
</encoder>
|
|
||||||
</appender>
|
|
||||||
|
|
||||||
<root level="INFO">
|
|
||||||
<appender-ref ref="STDOUT" />
|
|
||||||
</root>
|
|
||||||
</configuration>
|
|
|
@ -1,28 +0,0 @@
|
||||||
package com.baeldung.shallowdeepcopy;
|
|
||||||
|
|
||||||
import static org.junit.jupiter.api.Assertions.assertEquals;
|
|
||||||
|
|
||||||
import org.junit.jupiter.api.Test;
|
|
||||||
|
|
||||||
class ShallowDeepCopyUnitTest {
|
|
||||||
|
|
||||||
@Test
|
|
||||||
public void givenAnObjectAndADependency_whenShallowClonedAndDepencyChanges_ThenDepencyHasNewValue() throws Exception {
|
|
||||||
Dependency dependency = new Dependency(13);
|
|
||||||
Main main = new Main(dependency);
|
|
||||||
Main shallowClone = (Main) main.clone();
|
|
||||||
dependency.setValue(17);
|
|
||||||
assertEquals(17, shallowClone.getDependency()
|
|
||||||
.getValue());
|
|
||||||
}
|
|
||||||
|
|
||||||
@Test
|
|
||||||
public void givenAnObjectAndADependency_whenDeepClonedAndDepencyChanges_ThenDepencyKeepsOldValue() throws Exception {
|
|
||||||
Dependency dependency = new Dependency(13);
|
|
||||||
Main main = new Main(dependency);
|
|
||||||
Main deepClone = (Main) main.deepClone();
|
|
||||||
dependency.setValue(17);
|
|
||||||
assertEquals(13, deepClone.getDependency()
|
|
||||||
.getValue());
|
|
||||||
}
|
|
||||||
}
|
|
Loading…
Reference in New Issue