String prepend: Difference between revisions

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@@ Line 672: / Line 672: @@
 =={{header|Java}}==
-<lang java>public class Prepend {
+<lang java>// prepend
+public class Prepend {
     public static void main(String[] args) {
-        String s = "world!";
+        StringBuilder sb = new StringBuilder("world");
-        System.out.println("Hello " + s);
+        sb.insert(0, "Hello, ");
+        System.out.println(sb);
     }
 }</lang>
 {{out}}
+<pre>prompt$ javac Prepend.java
-<pre>Hello world!</pre>
+prompt$ java Prepend
+Hello, world</pre>
 =={{header|Javascript}}==