Exception in thread "main" java.lang.NoClassDefFoundError: net/mindview/util/Pri

[怒鹰]

代码如下

package inintialization;

import static net.mindview.util.Print.*;

public class Tree {
	int height;

	Tree() {
		print("planting a seedling");
		height = 0;
	}

	Tree(int initialHeight) {
		height = initialHeight;
		print("Creating new Tree that is " + height + "feet tall");
	}

	void info() {
		print("Three is " + height + "feet tall");
	}

	void info(String s) {
	print(s+":Tree is "+ height +"feet tall");
	}
}

package inintialization;

public class Overloading {

	public static void main(String[] args) {
		// TODO 自动生成的方法存根
		for (int i = 0; i < 5; i++) {
			Tree t=new Tree(i);
			t.info();
			t.info("overloaded method");
		}
		new Tree();
	}

}

运行之前不显示错误，点击运行后报错信息如下：

Exception in thread "main" java.lang.NoClassDefFoundError: net/mindview/util/Print
	at inintialization.Tree.<init>(Tree.java:15)
	at inintialization.Overloading.main(Overloading.java:8)
Caused by: java.lang.ClassNotFoundException: net.mindview.util.Print
	at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:606)
	at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:168)
	at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
	... 2 more

mindview.jar 已经添加到 Java Build Path ->Libraries,求求大神帮帮我