add PrintStream and StringBuilder

classes.js

@@ -85,7 +85,6 @@ Classes.prototype.loadJSFile = function(fileName) {
     var fun = new Function("module", "require", "util", util.decodeUtf8(bytes));
     var module = {};
     function require(className) {
-        console.log("className=" + className);
         return self.getClass(className);
     }
     fun(module, require, util);

jdk/java/io/PrintStream.js

@@ -0,0 +1,28 @@
+/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* vim: set shiftwidth=4 tabstop=4 autoindent cindent expandtab: */
+
+'use strict';
+
+var PrintStream = module.exports = function() {
+    if (this instanceof PrintStream) {        
+    } else {
+        return new PrintStream();
+    }
+};
+
+PrintStream.getClassName = function() {
+    return "java/io/PrintStream";
+}
+ 
+PrintStream.prototype.print = function() {
+    util.print.apply(null, arguments);
+};
+
+PrintStream.prototype.println = function() {
+    util.print.apply(null, arguments);
+    util.print("\n");
+};
+
+PrintStream.prototype.format = function(fmt, args) {
+    util.print(util.format.apply(null, [fmt].concat(args)));
+}

jdk/java/lang/StringBuilder.js

@@ -0,0 +1,43 @@
+/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* vim: set shiftwidth=4 tabstop=4 autoindent cindent expandtab: */
+
+'use strict';
+
+var Object = require("java/lang/Object.js");
+
+var StringBuilder = module.exports = function(p) {
+    if (this instanceof StringBuilder) {
+        if (typeof p === "number") {
+            this._buf = new Array(p).join(' ');
+        } else {
+            this._buf = p || "";
+        }
+    } else {
+        return new StringBuilder(p);
+    }
+}
+
+util.inherits(StringBuilder, Object);
+
+StringBuilder.getClassName = function() {
+    return "java/lang/StringBuilder";
+}
+ 
+
+StringBuilder.prototype["<init>"] = function() {
+    for(var i=0; i<arguments.length; i++) {
+        this._buf += arguments[i].toString();
+    }
+    return this;
+}
+
+StringBuilder.prototype["append"] = function() {
+    for(var i=0; i<arguments.length; i++) {
+        this._buf += arguments[i].toString();
+    }
+    return this;
+}
+
+StringBuilder.prototype["toString"] = function() {
+    return this._buf.toString();
+}

util.js

@@ -71,6 +71,7 @@ var util = (function () {
   return {
     format: format,
     inherits: inherits,
+    print: console.log.bind(console),
     debug: console.info.bind(console),
     error: console.error.bind(console),
     info: console.info.bind(console),