Eclipse设置内存大小

public class ShowMemory {   
     /**  
      * @param args  
      */   
    public static void main(String[] args) {   
       System. out .println( " 内存信息 :" + memoryInfo());   
    }   
     /**  
      * 获取当前 jvm 的内存信息  
      */   
    public static String memoryInfo() {   
       Runtime currRuntime = Runtime.getRuntime ();   
       int freeMemory = ( int ) (currRuntime.freeMemory() / 1024 / 1024);   
       int totalMemory = ( int ) (currRuntime.totalMemory() / 1024 / 1024);   
       return freeMemory + "M/" + totalMemory  + "M(free/total)" ;   
    }   
}