Java 实现：输入 3 个学生成绩信息并计算总分与平均分

以下是使用 Java 实现的代码： ```java import java.util.Scanner; class Score { int usualScore; int finalScore; public int calculateTotalScore() { return (int) (usualScore * 0.4 + finalScore * 0.6); } } class Student { String studentId; String name; Score chineseScore; Score mathScore; Score physicsScore; public int calculateTotalScore() { return chineseScore.calculateTotalScore() + mathScore.calculateTotalScore() + physicsScore.calculateTotalScore(); } public double calculateAverageScore() { return (double) calculateTotalScore() / 3; } } public class Main { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); Student[] students = new Student[3]; for (int i = 0; i < 3; i++) { Student student = new Student(); System.out.print("请输入第" + (i + 1) + "个学生的学号: "); student.studentId = scanner.nextLine(); System.out.print("请输入第" + (i + 1) + "个学生的姓名: "); student.name = scanner.nextLine(); System.out.print("请输入第" + (i + 1) + "个学生的语文平时成绩: "); int usualChineseScore = scanner.nextInt(); System.out.print("请输入第" + (i + 1) + "个学生的语文期末成绩: "); int finalChineseScore = scanner.nextInt(); student.chineseScore = new Score(); student.chineseScore.usualScore = usualChineseScore; student.chineseScore.finalScore = finalChineseScore; System.out.print("请输入第" + (i + 1) + "个学生的数学平时成绩: "); int usualMathScore = scanner.nextInt(); System.out.print("请输入第" + (i + 1) + "个学生的数学期末成绩: "); int finalMathScore = scanner.nextInt(); student.mathScore = new Score(); student.mathScore.usualScore = usualMathScore; student.mathScore.finalScore = finalMathScore; System.out.print("请输入第" + (i + 1) + "个学生的物理平时成绩: "); int usualPhysicsScore = scanner.nextInt(); System.out.print("请输入第" + (i + 1) + "个学生的物理期末成绩: "); int finalPhysicsScore = scanner.nextInt(); student.physicsScore = new Score(); student.physicsScore.usualScore = usualPhysicsScore; student.physicsScore.finalScore = finalPhysicsScore; scanner.nextLine(); // 处理输入流中的换行符 students[i] = student; } for (int i = 0; i < 3; i++) { System.out.println("第" + (i + 1) + "个学生的总分: " + students[i].calculateTotalScore()); System.out.printf("第" + (i + 1) + "个学生的平均分: %.2f\n", students[i].calculateAverageScore()); } } } ``` 这段代码首先创建了`Score`类来表示成绩，包含平时成绩和期末成绩，以及计算总成绩的方法。然后创建`Student`类来表示学生，包含学号、姓名和各个科目的成绩对象，以及计算总分和平均分的方法。在`main`方法中，通过用户输入创建学生对象并存储在数组中，最后计算并输出每个学生的总分和平均分。 ######[AI写代码神器 | 847点数解答 | 2024-10-11 08:45:50]