added Findcharinstring

findcharinstring.java

@@ -0,0 +1,44 @@
+/*Java program to find the occurrence of a character in a string */
+class JavaExample {  
+
+   static void countEachChar(String str) 
+   { 
+	//ASCII values ranges upto 256
+	int counter[] = new int[256]; 
+
+	//String length
+	int len = str.length(); 
+
+	/* This array holds the occurrence of each char, For example
+	 * ASCII value of A is 65 so if A is found twice then 
+	 * counter[65] would have the value 2, here 65 is the ASCII value
+	 * of A
+	 */
+	for (int i = 0; i < len; i++) 
+		counter[str.charAt(i)]++; 
+
+	// We are creating another array with the size of String
+	char array[] = new char[str.length()]; 
+        for (int i = 0; i < len; i++) { 
+	   array[i] = str.charAt(i); 
+	   int flag = 0; 
+	   for (int j = 0; j <= i; j++) { 
+
+		/* If a char is found in String then set the flag 
+		 * so that we can print the occurrence
+		 */
+		if (str.charAt(i) == array[j])  
+			flag++;                 
+	   } 
+
+	   if (flag == 1)  
+	      System.out.println("Occurrence of char " + str.charAt(i)
+		 + " in the String is:" + counter[str.charAt(i)]);             
+	} 
+   } 
+   public static void main(String[] args) 
+   {  
+	String str = "beginnersbook"; 
+	countEachChar(str); 
+   } 
+}