java练习题请给出详细代码谢啦

发布网友发布时间：2022-05-06 12:40

共1个回答

热心网友时间：2022-06-30 14:01

package myeclipse;

import java.util.Comparator;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import java.util.TreeMap;

public class StudentInfoInput {
    private String stuNo;
    private    String stuName;
    private double one;
    private double two;
    private double three;
    private double four;



    public StudentInfoInput() {
        super();
        // TODO Auto-generated constructor stub
    }

    public StudentInfoInput(String stuNo, String stuName) {
        super();
        this.stuNo = stuNo;
        this.stuName = stuName;
    }

    public StudentInfoInput(String stuNo, String stuName, double one,
            double two, double three, double four) {
        super();
        this.stuNo = stuNo;
        this.stuName = stuName;
        this.one = one;
        this.two = two;
        this.three = three;
        this.four = four;
    }

    public StudentInfoInput(String stuName) {
        super();
        this.stuName = stuName;
    }

    public String getStuName() {
        return stuName;
    }

    public void setStuName(String stuName) {
        this.stuName = stuName;
    }

    public String getStuNo() {
        return stuNo;
    }

    public void setStuNo(String stuNo) {
        this.stuNo = stuNo;
    }

    public double getOne() {
        return one;
    }

    public void setOne(double one) {
        this.one = one;
    }

    public double getTwo() {
        return two;
    }

    public void setTwo(double two) {
        this.two = two;
    }

    public double getThree() {
        return three;
    }

    public void setThree(double three) {
        this.three = three;
    }

    public double getFour() {
        return four;
    }

    public void setFour(double four) {
        this.four = four;
    }
    public String toString() {
        return "stuNo:"+stuNo+",stuName:"+stuName+",one:"+one+",two:"+two+",three:"+three+",four:"+four;
    }
}
class Sort {
    public static void main(String[] args) {
        StudentInfoInput si1 = new StudentInfoInput("001","小明",23.2,123,65.3,98);
        StudentInfoInput si2 = new StudentInfoInput("002","小红",54,54.5,78.7,43);
        StudentInfoInput si3 = new StudentInfoInput("003","小小",56,34.5,67,90);
        sort(si1,si2,si3);
    }
    public static void sort(StudentInfoInput si1,StudentInfoInput si2,StudentInfoInput si3) {
        Map<StudentInfoInput,Double> map = new HashMap<StudentInfoInput, Double>();
        ValueComparator vc = new ValueComparator(map);
        TreeMap<StudentInfoInput, Double> tm = new TreeMap<StudentInfoInput, Double>(vc);
        map.put(si1, sum(si1));
        map.put(si2, sum(si2));
        map.put(si3, sum(si3));
        tm.putAll(map);
        System.out.println(tm);

    }
    public static double sum(StudentInfoInput si) {
        return si.getOne()+si.getTwo()+si.getThree()+si.getFour();
    }

}
class ValueComparator implements Comparator<StudentInfoInput> {

    Map<StudentInfoInput, Double> base;
    public ValueComparator(Map<StudentInfoInput, Double> base) {
        this.base = base;
    }

    @Override
    public int compare(StudentInfoInput o1, StudentInfoInput o2) {
        if (base.get(o1) >= base.get(o2)) {
            return -1;
        } else {
            return 1;
        }
    }
}

追问非常非常感谢啦😃

java练习题 请给出详细代码 谢啦

java练习题请给出详细代码谢啦