checks for output string in given input string

Author: NirmalSilwal

Basic programs/StringMatching.java

@@ -0,0 +1,32 @@
+package BasicPractice;
+
+public class StringMatching {
+
+	public static void main(String[] args) {
+
+		String input = "abcdyesefg";
+		String output = "yes";
+
+		System.out.println(searchString(input, output)); // 4
+		System.out.println(searchString(input, "yeb")); // -1
+	}
+
+	public static int searchString(String input, String output) {
+
+		int inplen = input.length();
+		int oplen = output.length();
+
+		if (inplen == 0 | oplen == 0 | oplen > inplen) {
+			return -1;
+		}
+
+		for (int index = 0; index < inplen - oplen; index++) {
+			String possibleStr = input.substring(index, index + oplen);
+			if (possibleStr.equals(output)) {
+				return index;
+			}
+		}
+
+		return -1;
+	}
+}