diff --git a/18951569.java b/18951569.java
new file mode 100644
index 0000000000000000000000000000000000000000..3216390b0eb87475f35e18da755e314751645c7c
--- /dev/null
+++ b/18951569.java
@@ -0,0 +1,20 @@
+/**
+ * aa bb cc
+ * @param a
+ * @param n
+ */
+public static void bubbleSort(int [] a,int n){
+        if(n<=1)return;
+        for(int i=0;i<n-1;i++){
+                boolean swapped=false;
+                for(int j=0;j<n-1-i;j++){
+                        if(a[j]>a[j+1]){
+                                int temp=a[j];
+                                a[j]=a[j+1];
+                                a[j+1]=temp;
+                                swapped=true;
+                        }
+                }
+                if(!swapped)break;
+        }
+}//end
diff --git a/codes/bai1982/18951569.java b/codes/bai1982/18951569.java
new file mode 100644
index 0000000000000000000000000000000000000000..140a41392365854d2107de38ab55d8120150ffdc
--- /dev/null
+++ b/codes/bai1982/18951569.java
@@ -0,0 +1,21 @@
+/**
+ * aa bb cc
+ * @param a
+ * @param n
+ */
+public static void bubbleSort(int [] a,int n){
+	if(n<=1)return;
+	for(int i=0;i<n-1;i++){
+		boolean swapped=false;
+		for(int j=0;j<n-1-i;j++){
+			if(a[j]>a[j+1]){
+				int temp=a[j];
+				a[j]=a[j+1];
+				a[j+1]=temp;
+				swapped=true;
+			}
+		}
+		if(!swapped)break;
+	}
+}//end
+