同步课 / Java SE for Tester Student

package demo9;

public class Student {
	private String name;
	private int EnglishScore;
	private int MathScore;
	private int SportScore;
	private Grade grade;
	Student(){
	}
	 Student(String name,int E,int M,int S){
		this.name=name;
		this.EnglishScore=E;
		this.MathScore=M;
		this.SportScore=S;
	}
	public double getAvgScore() {
		return (EnglishScore+MathScore+SportScore)/3;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public int getEnglishScore() {
		return EnglishScore;
	}
	public void setEnglishScore(int englishScore) {
		EnglishScore = englishScore;
	}
	public int getMathScore() {
		return MathScore;
	}
	public void setMathScore(int mathScore) {
		MathScore = mathScore;
	}
	public int getSportScore() {
		return SportScore;
	}
	public void setSportScore(int sportScore) {
		SportScore = sportScore;
	}
	public Grade getGrade() {
		return grade;
	}
	public void setGrade(Grade grade) {
		this.grade = grade;
	}
}
package demo9;

public enum Grade {
	A,B,C,D
}
package demo9;


public class test2 {
	public static int ANUm=0;
	public static int BNUm=0;
	public static int CNUm=0;
	public static int DNUm=0;
	public static void main(String[] args) {
	
	Student []A=new Student[10];
	 A[0]=new Student("zhangsan",90,80,70);
	 A[1]=new Student("lisi",70,70,60);
	 A[2]=new Student("laobai",50,70,60);
	 A[3]=new Student("liswwi",60,50,60);
	 A[4]=new Student("liddsi",40,40,60);
	 A[5]=new Student("lissi",90,90,97);
	 A[6]=new Student("liedgfsi",30,70,100);
	 A[7]=new Student("lidfsi",80,80,89);
	 A[8]=new Student("ligdgsi",60,90,60);
	 A[9]=new Student("lisasi",70,90,60);
	 int i;
	 for(i=0;i<10;i++){
		 double b=A[i].getAvgScore();
		 if(b>=90){
			 A[i].setGrade(Grade.A);
			 ANUm++;
		 }
			
		 if(b>=80&&b<90){
			 A[i].setGrade(Grade.B);
			 BNUm++;}
		 if(b>=60&&b<80){
			 A[i].setGrade(Grade.C);
			 CNUm++;
		 }
			 
		 if(b<60){
			 A[i].setGrade(Grade.D);
			 DNUm++;
		 }	 
	 }
	 System.out.println("A等级学生所占比为"+"0."+ANUm);
	 System.out.println("B等级学生所占比为"+"0."+BNUm);
	 System.out.println("C等级学生所占比为"+"0."+CNUm);
	 System.out.println("D等级学生所占比为"+"0."+DNUm);
}
	
}