java 封装（用一个类去定义另一个类的属性）

最新推荐文章于 2022-07-17 14:26:46 发布

原创最新推荐文章于 2022-07-17 14:26:46 发布 · 2.9k 阅读

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本文探讨了Java中的类封装概念，通过实例展示了如何创建一个类来定义并封装另一个类的属性。讲解了如何提高代码复用性和数据安全性，以及相关的设计原则。

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package day08.test;

public class Student {

	private String stuNo;
	private String stuName;
	private String stuSex;
	private int stuAge;
	private Classes c;
	
	public Student() {
		super();
	}
	
	public Student(String stuNo, String stuName, String stuSex, int stuAge, Classes c) {
		super();
		this.stuNo = stuNo;
		this.stuName = stuName;
		this.stuSex = stuSex;
		this.stuAge = stuAge;
		this.c = c;
	}

	public String getStuNo() {
		return stuNo;
	}
	public void setStuNo(String stuNo) {
		this.stuNo = stuNo;
	}
	public String getStuName() {
		return stuName;
	}
	public void setStuName(String stuName) {
		this.stuName = stuName;
	}
	public String getStuSex() {
		return stuSex;
	}
	public void setStuSex(String stuSex) {
		this.stuSex = stuSex;
	}
	public int getStuAge() {
		return stuAge;
	}
	public void setStuAge(int stuAge) {
		this.stuAge = stuAge;
	}
	public Classes getC() {
		return c;
	}
	public void setC(Classes c) {
		this.c = c;
	}
	
	public void show(){
		System.out.println("我叫"+stuName+",今年"+stuAge+"岁了。");
		System.out.println("我在"+c.getClassName()+"班级就读，我的学号是"+stuNo);
	}
	
}

package day08.test;

public class Classes {

	private String classNo;
	private String className;
	
	public Classes() {
		super();
	}
	
	public Classes(String classNo, String className) {
		super();
		this.classNo = classNo;
		this.className = className;
	}

	public String getClassNo() {
		return classNo;
	}
	public void setClassNo(String classNo) {
		this.classNo = classNo;
	}
	public String getClassName() {
		return className;
	}
	public void setClassName(String className) {
		this.className = className;
	}
	
	public void show(String kouHao){
		System.out.println(className+"班的编号是:"+classNo);
		System.out.println("我们班的口号是："+kouHao);
	}
	
}