Added Java Map Program

amit14mitra · web-flow · commit c2104ade7363 · 2020-10-05T11:33:57.000+05:30
diff --git a/MapDemo.java b/MapDemo.java
@@ -0,0 +1,34 @@
+/* Here is given a phone book that consists of people's names and their phone number.
+After that I will take some person's name as query. 
+For each query I print the phone number of that person. */
+
+import java.util.*;
+import java.io.*;
+
+class Solution{
+	public static void main(String []argh)
+	{
+		Scanner in = new Scanner(System.in);
+		int n=in.nextInt();
+		in.nextLine();
+    Map<String,Integer> m=new HashMap<String,Integer>();
+		for(int i=0;i<n;i++)
+		{
+			String name=in.nextLine();
+			int phone=in.nextInt();
+      m.put(name,phone);
+			in.nextLine();
+		}
+		while(in.hasNext())
+		{
+			String s=in.nextLine();
+        if(m.containsKey(s))
+          System.out.println(s+"="+m.get(s));
+        else
+          System.out.println("Not found");
+		}
+	}
+}
+
+
+
