Add java code for linear search

searching/README.md

@@ -11,3 +11,9 @@
 1. [Linear Search](python/linear-search.py)
 2. [Binary Search](python/binary-search.py)
 
+### Java
+
+1. [Linear Search](java/linear-search.java)
+
+
+

searching/java/linear-search.java

@@ -0,0 +1,21 @@
+//Linear search to check for a given key in an array
+
+public class MyLinearSearch{    
+public static int linearSearch(int[] arr, int key){    
+        for(int i=0;i<arr.length;i++){    
+            if(arr[i] == key){    
+                return i;    
+            }    
+        }    
+        return -1;    
+    }    
+    public static void main(String args[]){    
+        int[] arr1= {10,20,30,50,70,90};    
+        int key = 30;    
+        System.out.println(key+" is present and is found at index: "+linearSearch(arr1, key));    
+    }    
+}  
+
+// For running in terminal rename this file to MyLinearSearch.java
+//then run the commands <javac MyLinearSearch.java> followed by <java MyLinearSearch>
+//It will generate and a MyLinearSearch.class file which is a file containing java bytecode that is executed by JVM.