我试图将public static void readGrades()的结果存储到方法数组int []成绩中。但我没有这样做。不幸的是,我尝试了ArrayList和其他东西。
public static int[]grades;
public static void main(String[] args) {
readGrades();
}
public static void readGrades(){
Scanner in=new Scanner(System.in);
System.out.print("How many students there are : ");
int numberOfStudents=in.nextInt();
for(int i=1;i<=numberOfStudents;i++){
System.out.print("Enter the grade of the students : ");
int grades1=in.nextInt();
grades1++;
}
答案 0 :(得分:1)
试试这个:
public static int[] grades;
public static void main(String[] args) {
readGrades();
}
public static void readGrades(){
Scanner in=new Scanner(System.in);
System.out.print("How many students there are : ");
int numberOfStudents=in.nextInt();
grades=new int[numberOfStudents];
for(int i=0;i<numberOfStudents;i++){
System.out.print("Enter the grade of the students : ");
int grade=in.nextInt();
grades[i]=grade;
}
}
你必须知道这会将数据存储在grades
数组中,你可以使用它调用方法readGrades(),尝试编写在readGrades()之后打印成绩的代码。
答案 1 :(得分:1)
您无需声明grades[] static
,也可以使用locally declared int[]
进行声明,如下所示:
public static void main(String[] args) {
Scanner in=new Scanner(System.in);
System.out.print("How many students there are : ");
int numberOfStudents=in.nextInt();
int[] grades = new int[numberOfStudents];
readGrades(grades, in);
// here you can write code to play with grades array
}
public static void readGrades(int[] grades, Scanner in){
for(int i=0;i<numberOfStudents;i++){
System.out.print("Enter the grade of the students : ");
grades[i]=in.nextInt();
}
}
希望这有帮助。