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Java获得当前系统内存情况的代码如下:
ManagementFactory.getOperatingSystemMXBean()返回的是java.lang.management里面的peratingSystemMXBean ;
我们要用的是com.sun.management.OperatingSystemMXBean;
在java类库中可以查到:
public abstract Interface com.sun.management.OperatingSystemMXBean extends java.lang.management.OperatingSystemMXBean ,所以我们可以强制转换一下。
硬盘使用:
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