[Java] Added missing semicolon in Working with Schema page (#232)

* added missing semicolon

* added semicolon in one more receipe
diff --git a/java/source/schema.rst b/java/source/schema.rst
index a855e77..f6bcfaa 100644
--- a/java/source/schema.rst
+++ b/java/source/schema.rst
@@ -20,7 +20,7 @@
     import org.apache.arrow.vector.types.pojo.FieldType;
 
     Field name = new Field("name", FieldType.nullable(new ArrowType.Utf8()), null);
-    System.out.print(name)
+    System.out.print(name);
 
 .. testoutput::
 
@@ -33,7 +33,7 @@
     import org.apache.arrow.vector.types.pojo.FieldType;
 
     Field age = new Field("age", FieldType.nullable(new ArrowType.Int(32, true)), null);
-    System.out.print(age)
+    System.out.print(age);
 
 .. testoutput::
 
@@ -52,7 +52,7 @@
     childFields.add(childField);
     Field points = new Field("points", listType, childFields);
 
-    System.out.print(points)
+    System.out.print(points);
 
 .. testoutput::
 
@@ -108,7 +108,7 @@
     metadata.put("C", "Visa");
     Field document = new Field("document", new FieldType(true, new ArrowType.Utf8(), null, metadata), null);
 
-    System.out.print(document.getMetadata())
+    System.out.print(document.getMetadata());
 
 .. testoutput::