构建一个学生Student,根据类Student的定义,创建五个该类的对象,输出每个学生的信息,计算并输出这五个学生Java语言成绩的平均值,以及计算并输出他们Java语言成绩的最大值和最小值。

2019/05/11 20:55
阅读数 2.2K

定义一个表示学生信息的类Student,要求如下:

(1)类Student的成员变量:

sNO 表示学号;

sName表示姓名;

sSex表示性别;

sAge表示年龄;

sJava:表示Java课程成绩。

(2)类Student带参数的构造方法:

在构造方法中通过形参完成对成员变量的赋值操作。

(3)类Student的方法成员:

getNo():获得学号;

getName():获得姓名;

getSex():获得性别;

getAge()获得年龄;

getJava():获得Java 课程成绩

根据类Student的定义,创建五个该类的对象,输出每个学生的信息,计算并输出这五个学生Java语言成绩的平均值,以及计算并输出他们Java语言成绩的最大值和最小值。

方法一:

package com.Summer_0511.cn;

import java.util.Arrays;

class Student{
    private int sNo;
    private String sName;
    private String sSex;
    private int sAge;
    private int sJava;
    
    public Student(int sNo, String sName, String sSex, int sAge, int sJava) {
        super();
        this.sNo = sNo;
        this.sName = sName;
        this.sSex = sSex;
        this.sAge = sAge;
        this.sJava = sJava;
    }

    public int getsNo() {
        return sNo;
    }

    public String getsName() {
        return sName;
    }

    public String getsSex() {
        return sSex;
    }

    public int getsAge() {
        return sAge;
    }

    public int getsJava() {
        return sJava;
    }

    @Override
    public String toString() {
        return "student [sNo=" + sNo + ", sName=" + sName + ", sSex=" + sSex + ", sAge=" + sAge + ", sJava=" + sJava
                + "]";
    }    
    
    
}

    
public class Test05 {

    public static void main(String[] args) {
        Student s1 = new Student(1, "小a","男" , 18, 95);
        Student s2 = new Student(2,"小b","女",20,90);
        Student s3 = new Student(3,"小c","女",21,65);
        Student s4 = new Student(4, "小d", "男", 18, 100);
        Student s5 = new Student(5, "小e", "男", 15, 85);
        int [] s = new int[5];
        s[0] = s1.getsJava();
        s[1] = s2.getsJava();
        s[2] = s3.getsJava();
        s[3] = s4.getsJava();
        s[4] = s5.getsJava();
        int sum = 0;
        int Max=s[1],Min=s[1];
        for (int i = 0; i < s.length; i++) {
            
            sum = sum+s[i];
            
            if (Max < s[i]) {
                Max = s[i];
            }
            if (Min >s[i]) {
                Min = s[i];
            }
        }
        System.out.println("java的平均成绩为"+sum/5);
        System.out.println("java成绩的最小值"+Min);
        System.out.println("java成绩的最大值"+Max);
        
    }

}

方法二:

package stage3;

class Student{
    private int sNo;
    private String sName;
    private String sSex;
    private int sAge;
    private int sJava;
    public Student(int sNo, String sName, String sSex, int sAge, int sJava) {
        this.sNo = sNo;
        this.sName = sName;
        this.sSex = sSex;
        this.sAge = sAge;
        this.sJava = sJava;
    }
    public int getsNo() {
        return sNo;
    }
    public void setsNo(int sNo) {
        this.sNo = sNo;
    }
    public String getsName() {
        return sName;
    }
    public void setsName(String sName) {
        this.sName = sName;
    }
    public String getsSex() {
        return sSex;
    }
    public void setsSex(String sSex) {
        this.sSex = sSex;
    }
    public int getsAge() {
        return sAge;
    }
    public void setsAge(int sAge) {
        this.sAge = sAge;
    }
    public int getsJava() {
        return sJava;
    }
    public void setsJava(int sJava) {
        this.sJava = sJava;
    }
    
}
public class Test4 {

    public static void main(String[] args) {
        // 学员信息
        Student stu1 = new Student(1, "郭靖", "男", 22, 90);
        Student stu2 = new Student(2, "欧阳锋", "男", 61, 91);
        Student stu3 = new Student(3, "杨康", "男", 20, 92);
        Student stu4 = new Student(4, "欧阳克", "男", 23, 93);
        Student stu5 = new Student(5, "穆念慈", "女", 24, 94);
        Student [] stus = new Student[5];
        stus[0] = stu1;
        stus[1] = stu2;
        stus[2] = stu3;
        stus[3] = stu4;
        stus[4] = stu5;
        System.out.println("---信息---");
        for(int i = 0; i<stus.length;i++){
            System.out.println(stus[i].getsNo()+"\t"
                            +stus[i].getsName()
                            +"\t"+stus[i].getsSex()
                            +"\t"+stus[i].getsAge()
                            +"\t"+stus[i].getsJava());
        }
        
        int sum = 0;
        for(int i = 0; i<stus.length;i++){
            sum += stus[i].getsJava();
        }
        System.out.println("平均成绩:"+(sum/5));
    }
}

 

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