更新 test.java

src/solution/Solution.java

@@ -105,4 +105,24 @@ public class Solution {
         String result = Arrays.stream(nums1).mapToObj(String::valueOf).collect(Collectors.joining(",", "[", "]"));
         System.out.println(result);
     }
+
+    public static String longestCommonPrefix(String[] strs) {
+        // ["flower","flow","flight"]
+        int maxPrefix = 0;
+        int index = 0;
+        StringBuilder temp = new StringBuilder();
+        if (strs != null){
+            for (int i = 0; i < strs.length; i++) {
+                if (strs[i] != ""){
+                    for (int j = 0; j < strs[i].length() && j < index; j++) {
+                        temp.append(strs[i].charAt(index));
+                        break;
+                    }
+                } else {
+                    return "";
+                }
+            }
+        }
+        return "";
+    }
 }

src/solution/test.java

@@ -8,14 +8,18 @@ import java.util.stream.Collectors;
 
 public class test {
     public static void main(String[] args) {
-        int[] nums1 = new int[]{1,2,3,0,0,0};
+//        int[] nums1 = new int[]{1,2,3,0,0,0};
-        int m = 3;
+//        int m = 3;
-        int[] nums2 = new int[]{2,5,6};
+//        int[] nums2 = new int[]{2,5,6};
-        int n = 3;
+//        int n = 3;
 //        int[] nums1 = new int[]{1};
 //        int m = 1;
 //        int[] nums2 = new int[]{};
 //        int n = 0;
-        Solution.merge(nums1,m,nums2,n);
+//        Solution.merge(nums1,m,nums2,n);
+        String[] strs = new String[]{"flower","flow","flight"};
+        String result =  Solution.longestCommonPrefix(strs);
+        System.out.println(result);
     }
+
 }