public class Test {
	//編譯與執(zhí)行Sgd類
	public static void main(String []a){
	    try {
	    	//獲得Runtime的對象
			Runtime rt=Runtime.getRuntime();
			//E:\\workspace\\dfas\\src\\指定Sgd.java的路徑
			rt.exec("javac E:\\workspace\\dfas\\src\\Sgd.java");
			//E:\\workspace\\dfas\\指定Sgd.class的路徑
			rt.exec("java -classpath E:\\workspace\\dfas\\src Sgd");
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	
}