继承性练习 1

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继承性练习 1

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package com.atguigu.exer;
/*
 *  (1)定义一个ManKind类，包括成员变量int sex和int salary； 
 *  方法void manOrWoman()：根据sex的值显示“man”(sex==1)或者“woman”(sex==0)； 
 *  方法void employeed()：根据salary的值显示“no job”(salary==0)或者“ job”(salary!=0)。
 */
public class ManKind
{
	private int sex;  //性别
	private int salary;  //薪水
	
	
	
	public ManKind()	{
	}	

	public ManKind(int sex, int salary)	{
		this.sex = sex;
		this.salary = salary;
	}


	public void manOrWoman() {
		if(sex == 1) {
			System.out.println("man");
		}else if(sex == 0) {
			System.out.println("woman");
		}
	}
	
	public void employeed() {
/*		if(salary == 0) {
			System.out.println("no job");
		}else if(salary != 0) {
			System.out.println("job");
		}		*/
		String jobInfo = (salary == 0)?"no job" : "job";
		System.out.println(jobInfo);
	}

	public int getSex()	{
		return sex;
	}

	public void setSex(int sex)	{
		this.sex = sex;
	}

	public int getSalary()	{	
		return salary;
	}

	public void setSalary(int salary)	{
		this.salary = salary;
	}	
	
}

package com.atguigu.exer;
/*
 * (2)定义类Kids继承ManKind，并包括 成员变量int yearsOld； 方法printAge()打印yearsOld的值
 */
public class Kids extends ManKind
{
	private int yearsOld;
	
	public void printAge() {
		System.out.println("I am" + yearsOld + "years old.");
	}

	public int getYearsOld()	{
		return yearsOld;
	}

	public void setYearsOld(int yearsOld)	{
		this.yearsOld = yearsOld;
	}


	public Kids()	{
	}

	public Kids(int yearsOld)	{
		this.yearsOld = yearsOld;
	}						
}

package com.atguigu.exer;
/*
 * 定义类KidsTest，在类的main方法中实例化Kids的对象someKid，
 * 用该对象访问其父类的成员变量及方法
 */
public class KidsTest
{
	public static void main (String [] args) {
		Kids someKid = new Kids(12);
		
		someKid.printAge();
		
		someKid.setSalary(0);
		someKid.setSex(1);
		
		someKid.employeed();
		someKid.manOrWoman();
	}
}

I am12years old.
no job
man