Sort_Colors #LeetCode75 in JAVA

Java/SortColors.java

@@ -0,0 +1,27 @@
+public class SortColors {
+    public void sortColors(int[] nums) {
+      int n = nums.length;
+      int low = 0;
+      int mid = 0;
+      int high = n-1;
+      while(mid<=high){
+          if(nums[mid]==0){
+              swap(nums,low,mid);
+              low++;
+              mid++;
+          }
+          else if(nums[mid]==1){
+              mid++;
+          }
+          else{
+              swap(nums,mid,high);
+              high--;
+          }
+      } 
+    }
+    private void swap(int[] nums, int i, int j){
+        int temp = nums[i];
+        nums[i] =  nums[j];
+        nums[j] = temp;
+    }
+}