animal.java

来自「经典java教材《java完美经典》一书中源码的完全收集」· Java 代码 · 共 41 行

package j02080201.Pack1;
import java.lang.*;

public class animal
{
	private int IQ = 20;
	String LabArea = "地球";  //package 等级	
	protected String DNA = "A!@>SF<FMI<@RF(@#D";
	public float height;
	public float weight;	
	
	public void setIQ(int theIQ)
	{
		IQ = theIQ;   //存取 private 成员
		System.out.println("IQ = " + IQ);
	}
	public void setLabArea(String area)
	{
		LabArea = area; //存取 package 等级的成员
		System.out.println("LabArea = " + LabArea);
	}	
	public void setDNA(char ori,char rep)
	{           //存取 protected 成员
		DNA = DNA.replace(ori,rep) ;
		System.out.println("DNA = " + DNA);
	}	

	public static void main(String para[])
  {        //测试利用 animal 建对象来使用成员
		animal Obj1 = new animal();
		Obj1.height = 130;
		Obj1.weight = 50;
		System.out.println("Obj1.IQ = " + Obj1.IQ);
		System.out.println("Obj1.LabArea = " + Obj1.LabArea);				
		System.out.println("Obj1.DNA = " + Obj1.DNA);
		System.out.println("Obj1.height = " + Obj1.height);
		System.out.println("Obj1.weight = " + Obj1.weight);             
  }
}