Add StringBuilder class

nbdgit · web-flow · commit f5754d3aefc5 · 2019-05-03T22:16:06.000+05:30
diff --git a/src/main/java/com/conversions/BinaryToGray.java b/src/main/java/com/conversions/BinaryToGray.java
@@ -10,19 +10,19 @@ public class BinaryToGray
 	public String binaryToGray(String binarycode)
 	{
 				
-		String graycode = Character.toString(binarycode.charAt(0));
+		StringBuilder graycode = new StringBuilder(Character.toString(binarycode.charAt(0)));
 		
 		for(int i = 0; i < binarycode.length() - 1; i++)
 		{
 			
 			if (binarycode.charAt(i) == binarycode.charAt(i+1))
-				graycode = graycode + "0";
+				graycode.append("0");
 			else
-				graycode = graycode + "1";
+				graycode.append("1");
 			
 		}
 	
-		return graycode;
+		return graycode.toString();
 	}
 
 }

Original file line number	Diff line number	Diff line change
`@@ -10,19 +10,19 @@ public class BinaryToGray`
`10`	`10`	`public String binaryToGray(String binarycode)`
`11`	`11`	`{`
`12`	`12`
`13`		`- String graycode = Character.toString(binarycode.charAt(0));`
	`13`	`+ StringBuilder graycode = new StringBuilder(Character.toString(binarycode.charAt(0)));`
`14`	`14`
`15`	`15`	`for(int i = 0; i < binarycode.length() - 1; i++)`
`16`	`16`	`{`
`17`	`17`
`18`	`18`	`if (binarycode.charAt(i) == binarycode.charAt(i+1))`
`19`		`- graycode = graycode + "0";`
	`19`	`+ graycode.append("0");`
`20`	`20`	`else`
`21`		`- graycode = graycode + "1";`
	`21`	`+ graycode.append("1");`
`22`	`22`
`23`	`23`	`}`
`24`	`24`
`25`		`- return graycode;`
	`25`	`+ return graycode.toString();`
`26`	`26`	`}`
`27`	`27`
`28`	`28`	`}`