我正在从头学习 Java 基础知识。但还是有一些理论依据的。
如何计算下例中每个学生的平均分?
package teste01classes;
public class Metodos {
static void Media(Alunos[] aluno) {
// SEE HERE.
double[] media;
for (int i = 0; i < aluno.length; i++) {
media[i] = (aluno[i].n1 + aluno[i].n2 + aluno[i].n3) / 3;
System.out.println(aluno[i].nome + media[i]);
}
}
}
package teste01classes;
// Classe Alunos com os campos
public class Alunos {
String nome;
int n1, n2, n3;
}
package teste01classes;
public class Teste01Classes {
public static void main(String[] args) {
Alunos[] aluno = DadosAlunos.createAlunos();
}
}
最佳答案
您必须初始化媒体
array ,然后返回
它:
static double[] media(Alunos[] aluno) {
// allocate memory for a double array of size aluno.length
double[] media = new double[aluno.length];
for (int i = 0; i < aluno.length; i++) {
media[i] = (aluno[i].n1 + aluno[i].n2 + aluno[i].n3) / 3;
System.out.println(aluno[i].nome + media[i]);
}
return media;
}
然后,在您的 main
中调用它:
public static void main(String[] args) {
Alunos[] aluno = DadosAlunos.createAlunos();
double[] medias = Metodos.media(aluno);
}
关于java - 如何在数组结果中关联变量,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/12232834/