replaced inefficient use of constructors for Integer, Long, Float and Double

by the recommended static valueOf methods that cache results

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0/src/experimental@666292 13f79535-47bb-0310-9956-ffa450edef68

org/apache/commons/math/function/DefaultContext.java

@@ -145,19 +145,19 @@ public class DefaultContext implements EvaluationContext {
         }
                 
         DefaultValue(double d) {
-            value = new Double(d);
+            value = Double.valueOf(d);
         }
 
         DefaultValue(float f) {
-            value = new Float(f);
+            value = Float.valueOf(f);
         }
 
         DefaultValue(int i) {
-            value = new Integer(i);
+            value = Integer.valueOf(i);
         }
 
         DefaultValue(long l) {
-            value = new Long(l);
+            value = Long.valueOf(l);
         }
         
         /* (non-Javadoc)

org/apache/commons/math/stat/univariate/BeanListUnivariateImpl.java

@@ -134,7 +134,7 @@ public class BeanListUnivariateImpl extends ListUnivariateImpl implements Serial
 	    } catch (Exception ex) {              // InstantiationException, IllegalAccessException
 	        throw new RuntimeException(ex);   // should never happen
 	    }
-		dynaBean.set(propertyName, new Double(v));
+		dynaBean.set(propertyName, Double.valueOf(v));
 		addObject(dynaBean);
 	}
 

org/apache/commons/math/stat/univariate/BeanListUnivariateImplTest.java

@@ -60,21 +60,21 @@ public final class BeanListUnivariateImplTest extends TestCase {
         patientList = new ArrayList();
 
         // Create and add patient bean 1
-        VitalStats vs1 = new VitalStats( new Double(120.0), 
-                                         new Double(96.4) );
-        Patient p1 = new Patient( vs1, new Integer( 35 ) );
+        VitalStats vs1 = new VitalStats( Double.valueOf(120.0), 
+                                         Double.valueOf(96.4) );
+        Patient p1 = new Patient( vs1, Integer.valueOf( 35 ) );
         patientList.add( p1 );
 
         // Create and add patient bean 2
-        VitalStats vs2 = new VitalStats( new Double(70.0), 
-                                         new Double(97.4) );
-        Patient p2 = new Patient( vs2, new Integer( 23 ) );
+        VitalStats vs2 = new VitalStats( Double.valueOf(70.0), 
+                                         Double.valueOf(97.4) );
+        Patient p2 = new Patient( vs2, Integer.valueOf( 23 ) );
         patientList.add( p2 );
 
         // Create and add patient bean 3
-        VitalStats vs3 = new VitalStats( new Double(90.0), 
-                                         new Double(98.6) );
-        Patient p3 = new Patient( vs3, new Integer( 42 ) );
+        VitalStats vs3 = new VitalStats( Double.valueOf(90.0), 
+                                         Double.valueOf(98.6) );
+        Patient p3 = new Patient( vs3, Integer.valueOf( 42 ) );
         patientList.add( p3 );
     }