有3名学生,每名学生有 3 门课的成绩(数学、外语、计算机),从键盘输入以上数据(包括姓名,3门课成绩),随即输出总分最高的学生对象的信息。 java
时间: 2023-09-13 16:04:51 浏览: 72
### 回答1:
可以使用一个 `Student` 类来封装每个学生的信息,包括姓名和三门课的成绩,然后使用一个数组来保存学生对象,遍历数组求出总分最高的学生对象即可。下面是示例代码:
```java
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
Student[] students = new Student[3];
// 输入每个学生的信息
for (int i = 0; i < 3; i++) {
System.out.println("请输入第" + (i + 1) + "个学生的姓名和成绩(数学、外语、计算机):");
String name = scanner.next();
int mathScore = scanner.nextInt();
int englishScore = scanner.nextInt();
int computerScore = scanner.nextInt();
students[i] = new Student(name, mathScore, englishScore, computerScore);
}
// 找出总分最高的学生对象
Student maxStudent = null;
int maxTotalScore = 0;
for (int i = 0; i < 3; i++) {
Student student = students[i];
int totalScore = student.getMathScore() + student.getEnglishScore() + student.getComputerScore();
if (totalScore > maxTotalScore) {
maxTotalScore = totalScore;
maxStudent = student;
}
}
// 输出总分最高的学生对象的信息
System.out.println("总分最高的学生是:" + maxStudent.getName());
System.out.println("数学成绩:" + maxStudent.getMathScore());
System.out.println("外语成绩:" + maxStudent.getEnglishScore());
System.out.println("计算机成绩:" + maxStudent.getComputerScore());
}
}
class Student {
private String name;
private int mathScore;
private int englishScore;
private int computerScore;
public Student(String name, int mathScore, int englishScore, int computerScore) {
this.name = name;
this.mathScore = mathScore;
this.englishScore = englishScore;
this.computerScore = computerScore;
}
public String getName() {
return name;
}
public int getMathScore() {
return mathScore;
}
public int getEnglishScore() {
return englishScore;
}
public int getComputerScore() {
return computerScore;
}
}
```
运行程序后,输入每个学生的姓名和成绩,最后会输出总分最高的学生对象的信息。
### 回答2:
首先,我们需要创建一个学生类,其中包括学生的姓名和成绩属性。
```java
public class Student {
private String name;
private int mathScore;
private int englishScore;
private int computerScore;
public Student(String name, int mathScore, int englishScore, int computerScore) {
this.name = name;
this.mathScore = mathScore;
this.englishScore = englishScore;
this.computerScore = computerScore;
}
public int getTotalScore() {
return mathScore + englishScore + computerScore;
}
public String getName() {
return name;
}
}
```
接下来,我们需要在主程序中使用Scanner类来从控制台输入学生的姓名和成绩,并计算总分最高的学生对象。
```java
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
Student highestScoringStudent = null;
int highestTotalScore = 0;
for (int i = 1; i <= 3; i++) {
System.out.print("请输入第" + i + "名学生的姓名:");
String name = scanner.next();
System.out.print("请输入" + name + "的数学成绩:");
int mathScore = scanner.nextInt();
System.out.print("请输入" + name + "的外语成绩:");
int englishScore = scanner.nextInt();
System.out.print("请输入" + name + "的计算机成绩:");
int computerScore = scanner.nextInt();
int totalScore = mathScore + englishScore + computerScore;
if (totalScore > highestTotalScore) {
highestTotalScore = totalScore;
highestScoringStudent = new Student(name, mathScore, englishScore, computerScore);
}
}
System.out.println("总分最高的学生是:" + highestScoringStudent.getName());
System.out.println("姓名:" + highestScoringStudent.getName());
System.out.println("数学成绩:" + highestScoringStudent.getMathScore());
System.out.println("外语成绩:" + highestScoringStudent.getEnglishScore());
System.out.println("计算机成绩:" + highestScoringStudent.getComputerScore());
System.out.println("总分:" + highestTotalScore);
}
}
```
以上代码实现了通过输入3名学生的姓名和成绩,输出总分最高的学生对象的信息。代码中通过一个循环来进行3名学生的输入和计算总分,同时判断总分是否大于之前的最高总分,如果是则更新最高总分和对应的学生对象。最后输出总分最高的学生的姓名和成绩。
### 回答3:
以下是使用Java语言编写的程序,用于从键盘输入三名学生的姓名和三门课程的成绩,并输出总分最高的学生对象的信息:
```java
import java.util.Scanner;
public class HighestScoringStudent {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
// 创建一个Student对象数组,用于存储三名学生的信息
Student[] students = new Student[3];
// 从键盘输入每个学生的姓名和成绩,并将其存储在Student对象数组中
for (int i = 0; i < students.length; i++) {
System.out.print("请输入第" + (i + 1) + "名学生的姓名:");
String name = scanner.next();
System.out.print("请输入" + name + "的数学成绩:");
int mathScore = scanner.nextInt();
System.out.print("请输入" + name + "的外语成绩:");
int englishScore = scanner.nextInt();
System.out.print("请输入" + name + "的计算机成绩:");
int computerScore = scanner.nextInt();
students[i] = new Student(name, mathScore, englishScore, computerScore);
}
// 寻找总分最高的学生对象
Student highestScoringStudent = students[0];
for (int i = 1; i < students.length; i++) {
if (students[i].getTotalScore() > highestScoringStudent.getTotalScore()) {
highestScoringStudent = students[i];
}
}
// 输出总分最高的学生对象的信息
System.out.println("总分最高的学生信息为:");
System.out.println("姓名:" + highestScoringStudent.getName());
System.out.println("数学成绩:" + highestScoringStudent.getMathScore());
System.out.println("外语成绩:" + highestScoringStudent.getEnglishScore());
System.out.println("计算机成绩:" + highestScoringStudent.getComputerScore());
System.out.println("总分:" + highestScoringStudent.getTotalScore());
}
}
class Student {
private String name;
private int mathScore;
private int englishScore;
private int computerScore;
public Student(String name, int mathScore, int englishScore, int computerScore) {
this.name = name;
this.mathScore = mathScore;
this.englishScore = englishScore;
this.computerScore = computerScore;
}
public String getName() {
return name;
}
public int getMathScore() {
return mathScore;
}
public int getEnglishScore() {
return englishScore;
}
public int getComputerScore() {
return computerScore;
}
public int getTotalScore() {
return mathScore + englishScore + computerScore;
}
}
```
这个程序首先创建了一个名为`HighestScoringStudent`的类,其中包含了一个`main`方法,用于执行程序的入口。在`main`方法中,先创建了一个`Scanner`对象,用于读取键盘输入。
然后,程序创建了一个长度为3的`Student`对象数组`students`,用于存储三名学生的信息。接下来,使用一个`for`循环,从键盘输入每个学生的姓名和成绩,并将其存储在`Student`对象数组中。
之后,程序根据学生的总分来寻找总分最高的学生对象。定义了一个`highestScoringStudent`变量,初始值为数组中的第一个学生对象。然后,使用一个`for`循环,逐一比较数组中的学生对象的总分,如果发现某个学生的总分更高,则将`highestScoringStudent`变量更新为该学生对象。
最后,程序输出总分最高的学生对象的信息,包括姓名、数学成绩、外语成绩、计算机成绩和总分。输出结果格式化较为清晰。