1 files changed, 2 insertions, 2 deletions
diff --git a/nlpsolver/ThirdParty/EvolutionarySolver/src/net/adaptivebox/deps/behavior/DEGTBehavior.java b/nlpsolver/ThirdParty/EvolutionarySolver/src/net/adaptivebox/deps/behavior/DEGTBehavior.java
index 3c1a12a0be9b..b215c348e3f4 100644
--- a/nlpsolver/ThirdParty/EvolutionarySolver/src/net/adaptivebox/deps/behavior/DEGTBehavior.java
+++ b/nlpsolver/ThirdParty/EvolutionarySolver/src/net/adaptivebox/deps/behavior/DEGTBehavior.java
@@ -40,12 +40,12 @@ import net.adaptivebox.problem.*;
 import net.adaptivebox.space.*;
 
 public class DEGTBehavior extends AbsGTBehavior implements ILibEngine {
-  public int DVNum = 2;  //Number of differential vectors, normally be 1 or 2
+  private int DVNum = 2;  //Number of differential vectors, normally be 1 or 2
   public double FACTOR = 0.5; //scale constant: (0, 1.2], normally be 0.5
   public double CR = 0.9;     //crossover constant: [0, 1], normally be 0.1 or 0.9
 
   //the own memory: store the point that generated in last learning cycle
-  protected SearchPoint pbest_t;
+  private SearchPoint pbest_t;
 
   public void setPbest(SearchPoint pbest) {
     pbest_t = pbest;