j02080302.java

经典java教材《java完美经典》一书中源码的完全收集

import java.lang.*;

class j02080302
{
	public String stName;
	private float Mathematic;
	private float Biology;
	private float English;	
	private float Literature;

	public j02080302()
	{
	}	//仍提供什么都不作的预设构造子

	public j02080302(String stName,float math,float bio,float eng,float liter)
	{		
		this.stName = stName;  //因区域变量和成员变量同名
		setScore(math,bio,eng,liter);
	}
	
	public void setScore(float math,float bio,float eng,float liter)
	{
		Mathematic = math;
		Biology = bio;
	  English = eng;
	  Literature = liter;
	}	
		
  public float getScore(int reduplicate ,int percentage)
  {
		float reduScore = 0;
		float oriScore = 0;
		float Score = 0;
		switch( reduplicate )
		{
			case 1:
				System.out.println("数学加重计分" + percentage + "%");
				reduScore = Mathematic * percentage/100;
				break;
			case 2:
				System.out.println("生物学加重计分" + percentage + "%");
				reduScore = Biology * percentage/100;
				break;
			case 3:
				System.out.println("英文加重计分" + percentage + "%");
				reduScore = English * percentage/100;
				break;
			case 4:
				System.out.println("本国文学加重计分" + percentage + "%");
				reduScore = Literature * percentage/100;
				break;
			default:
				System.out.println("无加重计分科目");
				break;							
		}
		
		oriScore = Mathematic + Biology + English + Literature;
		Score = oriScore + reduScore;
		return Score;
  }    
  
  public static void main(String[] para)
  {
		j02080302 st1 = new j02080302("阿呆",15.63F,21.2F,29.72F,52.6F);	
		System.out.println("第一年" + st1.stName + "的成绩单：");	
		System.out.println("总分 = " + st1.getScore(0,0));
		System.out.println("总分 = " + st1.getScore(3,60));
		System.out.println("......");		 
		
		System.out.println("第二年" + st1.stName + "与 X 手A 君共同赴考...");		                   		
		j02080302 gunner = new j02080302();
		gunner.setScore(65.62F,72.05F,79.4F,86.3F);
		System.out.println("X 手是没有名字的...");		
		System.out.println("总分 = " + gunner.getScore(0,0));
		System.out.println( st1.stName + "的成绩单：");	 
		st1.setScore(43,52,49,63);       //传入 int 类型之值，可自动转型为 float
		System.out.println("总分 = " + st1.getScore(0,0));
		System.out.println("总分 = " + st1.getScore(2,67));	
  }
}