Create BufferedReaderImplementation.java

premph · web-flow · commit c47f14419f1c · 2018-06-25T22:19:17.000+05:30
diff --git a/command-line/BufferedReaderImplementation.java b/command-line/BufferedReaderImplementation.java
@@ -0,0 +1,40 @@
+import java.io.*;
+
+class BufferedReaderImplementation {
+	public static void main (String s[]){
+		
+		double p=0.0,r=0.0,t=0.0,sin=0.0;
+		/**
+    * BufferedReader read input as string so parse to required data type is required
+    * BufferedReader takes ISR object as argument which in turn takes System.in as argument
+    */
+    
+		BufferedReader br = new BufferedReader ( new InputStreamReader (System.in));
+    
+    /** unlike Scanner, BR needs parsing their is possible dataypr mis-match
+    * hence try-catch block is used
+    */
+    
+		try{
+			
+		System.out.print("\n enter principal amount");
+		p = Double.parseDouble(br.readLine());
+		
+		System.out.print("\n enter rate");
+		r = Double.parseDouble(br.readLine());
+		
+		System.out.print("\n enter time");
+		t = Double.parseDouble(br.readLine());
+		
+		sin = (p*r*t)/100;
+		
+		System.out.print("\n the simple interest is  "+ sin);
+		
+		}
+		catch(Exception e){
+			System.out.print(e);
+		}
+		
+		
+	}
+}
