fix code

hutool-bloomFilter/src/main/java/cn/hutool/bloomfilter/bitMap/BitMap.java

@@ -22,6 +22,7 @@ public interface BitMap{
 	 * 检查是否包含值
 	 * 
 	 * @param i 值
+	 * @return 是否包含
 	 */
 	boolean contains(long i);
 
@@ -30,5 +31,5 @@ public interface BitMap{
 	 * 
 	 * @param i 值
 	 */
-	public void remove(long i);
+	void remove(long i);
 }

hutool-bloomFilter/src/main/java/cn/hutool/bloomfilter/bitMap/IntMap.java

@@ -11,7 +11,7 @@ import java.io.Serializable;
 public class IntMap implements BitMap, Serializable {
 	private static final long serialVersionUID = 1L;
 
-	private int[] ints = null;
+	private int[] ints;
 
 	/**
 	 * 构造
@@ -40,10 +40,7 @@ public class IntMap implements BitMap, Serializable {
 	public boolean contains(long i) {
 		int r = (int) (i / BitMap.MACHINE32);
 		int c = (int) (i % BitMap.MACHINE32);
-		if (((int) ((ints[r] >>> c)) & 1) == 1) {
-			return true;
-		}
-		return false;
+		return ((int) ((ints[r] >>> c)) & 1) == 1;
 	}
 
 	@Override

hutool-bloomFilter/src/main/java/cn/hutool/bloomfilter/bitMap/LongMap.java

@@ -11,7 +11,7 @@ import java.io.Serializable;
 public class LongMap implements BitMap, Serializable {
 	private static final long serialVersionUID = 1L;
 
-	private long[] longs = null;
+	private long[] longs;
 
 	/**
 	 * 构造
@@ -40,10 +40,7 @@ public class LongMap implements BitMap, Serializable {
 	public boolean contains(long i) {
 		int r = (int) (i / BitMap.MACHINE64);
 		long c = i % BitMap.MACHINE64;
-		if (((longs[r] >>> c) & 1) == 1) {
-			return true;
-		}
-		return false;
+		return ((longs[r] >>> c) & 1) == 1;
 	}
 
 	@Override

hutool-bloomFilter/src/main/java/cn/hutool/bloomfilter/filter/DefaultFilter.java

@@ -4,20 +4,20 @@ import cn.hutool.core.util.HashUtil;
 
 /**
  * 默认Bloom过滤器，使用Java自带的Hash算法
- * @author loolly
  *
+ * @author loolly
  */
 public class DefaultFilter extends AbstractFilter {
 	private static final long serialVersionUID = 1L;
 
-	public DefaultFilter(long maxValue, int MACHINENUM) {
-		super(maxValue, MACHINENUM);
+	public DefaultFilter(long maxValue, int machineNumber) {
+		super(maxValue, machineNumber);
 	}
-	
+
 	public DefaultFilter(long maxValue) {
 		super(maxValue);
 	}
-	
+
 	@Override
 	public long hash(String str) {
 		return HashUtil.javaDefaultHash(str) % size;

hutool-bloomFilter/src/main/java/cn/hutool/bloomfilter/filter/ELFFilter.java

@@ -5,8 +5,8 @@ import cn.hutool.core.util.HashUtil;
 public class ELFFilter extends AbstractFilter {
 	private static final long serialVersionUID = 1L;
 
-	public ELFFilter(long maxValue, int MACHINENUM) {
-		super(maxValue, MACHINENUM);
+	public ELFFilter(long maxValue, int machineNumber) {
+		super(maxValue, machineNumber);
 	}
 	
 	public ELFFilter(long maxValue) {