Update Read N characters Given Read4.java

varunu28 · web-flow · commit 543d42754ed7 · 2022-04-29T07:40:22.000-07:00
diff --git a/Easy/Read N characters Given Read4.java b/Easy/Read N characters Given Read4.java
@@ -1,6 +1,6 @@
 /**
  * The read4 API is defined in the parent class Reader4.
- *     int read4(char[] buf);
+ *     int read4(char[] buf4);
  */
 
 public class Solution extends Reader4 {
@@ -10,17 +10,19 @@ public class Solution extends Reader4 {
    * @return    The number of actual characters read
    */
   public int read(char[] buf, int n) {
-    boolean endOfFile = false;
-    int totalLength = 0;
-    char[] temp = new char[4];
-    while (!endOfFile && totalLength < n) {
-      int count = read4(temp);
-      endOfFile = count < 4;
-      count = Math.min(count, n - totalLength);
-      for (int i = 0; i < count; i++) {
-        buf[totalLength++] = temp[i];
+    int copied = 0;
+    int readLength = 4;
+    char[] buf4 = new char[4];
+    while (copied < n && readLength == 4) {
+      readLength = read4(buf4);
+      for (int i = 0; i < readLength; i++) {
+        if (copied == n) {
+          return copied;
+        }
+        buf[copied] = buf4[i];
+        copied++;
       }
     }
-    return totalLength;
+    return copied;
   }
 }
