import java.util.*;

class Float1
{
float level;
}

public class Float
{
public static void main(String[] args)
{
Float1 t1 = new Float1();
Float1 t2 = new Float1();
t1.level = 9.5;
t2.level = 7.5;
System.out.println(t1.level + " " +t2.level);
t1 = t2;
System.out.println(t1.level + " " + t2.level);
t1.level = 27.4;
System.out.println(t1.level + " " + t2.level);

}
}

import java.util.*;

class Float1
{
float level;
}

public class Float
{
public static void main(String[] args)
{
Float1 t1 = new Float1();
Float1 t2 = new Float1();
t1.level = 9.5f;
t2.level = 7.5f;
System.out.println(t1.level + " " +t2.level);
t1 = t2;
System.out.println(t1.level + " " + t2.level);
t1.level = 27.4f;
System.out.println(t1.level + " " + t2.level);

}
}

呵呵刚开始学java 还真不习惯总把float 的f 丢了.