// Property.java
import java.lang.*;
import java.util.*;public class Property
{
public static void main(String[] args)
{
System.out.println(new Date());
Properties p = System.getProperties();
p.list(System.out);
System.out.println("--- Memory Usage:");
Runtime rt = Runtime.getRuntime();
System.out.println("Total Memory = "
+ rt.totalMemory()
+ " Free Memory = "
+ rt.freeMemory());
}
}
import java.lang.*;
import java.util.*;public class Property
{
public static void main(String[] args)
{
System.out.println(new Date());
Properties p = System.getProperties();
p.list(System.out);
System.out.println("--- Memory Usage:");
Runtime rt = Runtime.getRuntime();
System.out.println("Total Memory = "
+ rt.totalMemory()
+ " Free Memory = "
+ rt.freeMemory());
}
}
再 java Property
再看看jdk的配置情况,确保正确,然后应该就会没有问题的
再 java Property
再用java运行