在列表中查找最高的数字。如果语句不起作用。有结果。JAVA

我想找到三个平均分最高的学生打印他们的名字和平均分。这三个地方似乎都是最高的。我知道可能有更好的方法可以做到这一点，如果你选择更好的解释方法，请先解释为什么这不起作用。只有结果中的最后语句不起作用

结果是： 测试1的班级平均成绩为：88 测试2的班级平均成绩为：62 测试3的班级平均成绩为：79 亚历克斯三次考试的平均成绩是85分 巴里三次考试的平均成绩是77分 辛迪三次考试的平均成绩是81分 Deb的三次测试平均值为72 埃里克三次考试的平均成绩是75分 弗兰的三次测试平均成绩是63 加里三次考试的平均成绩是74分 海伦三次考试的平均成绩是83分 平均分最高的学生是：亚历克斯，平均分为：85 平均分第二高的学生是：亚历克斯，平均分为：85 平均分第三高的学生是：亚历克斯，平均分为：85

我的代码是：

package lab3;

public class third {

    public static void main(String[] args) {
        String[] names = { "Alex", "Barry", "Cindy", "Deb", "Eric", "Fran",
                "Gary", "Helen" };

        int[][] grades = { { 77, 83, 96 }, { 88, 67, 78 }, { 92, 77, 76 },
                { 94, 42, 81 }, { 99, 54, 72 }, { 90, 46, 54 }, { 76, 59, 88 },
                { 94, 69, 88 } };
        int S = grades.length; // number of students
        int E = grades[0].length; // number of exams
        int sum = 0;
        for (int a = 0; a < S; a++) {
            sum = sum + grades[a][0];
        }
        System.out.println("The class average for test 1 is: " + sum / S);
        sum = 0;
        for (int a = 0; a < S; a++) {
            sum = sum + grades[a][1];
        }
        System.out.println("The class average for test 2 is: " + sum / S);
        sum = 0;
        for (int a = 0; a < S; a++) {
            sum = sum + grades[a][2];
        }
        System.out.println("The class average for test 3 is: " + sum / S);
        for (int a = 0; a < S; a++) {
            sum = 0;
            for (int b = 0; b < E; b++) {
                sum = sum + grades[a][b];
            }
            System.out
                    .println(names[a] + "'s three test average is " + sum / 3);

        }
        int firstPlace = 0;
        String firstPlaceName = "";
        int secondPlace = 0;
        String secondPlaceName = "";
        int thirdPlace = 0;
        String thirdPlaceName = "";
        for (int u = 0; u < S; u++) {
            sum = 0;
            for (int t = 0; t < E; t++) {
                sum = sum + grades[u][t];
            }
            if (sum > firstPlace) {
                firstPlace = sum;
                firstPlaceName = names[u];
                secondPlace = firstPlace;
                secondPlaceName = firstPlaceName;
                thirdPlace = secondPlace;
                thirdPlaceName = secondPlaceName;

            }
            if (sum > secondPlace && sum != firstPlace) {
                secondPlace = sum;
                secondPlaceName = names[u];
                thirdPlace = secondPlace;
                thirdPlaceName = secondPlaceName;

            }
            if (sum > thirdPlace && sum != firstPlace && sum != secondPlace) {
                thirdPlace = sum;
                thirdPlaceName = names[u];

            }
        }
        System.out.println("The student with the highest average is: "+firstPlaceName+" with a average of: "+firstPlace/3);
        System.out.println("The student with the second highest average is: "+secondPlaceName+" with a average of: "+secondPlace/3);
        System.out.println("The student with the third highest average is: "+thirdPlaceName+" with a average of: "+thirdPlace/3);

    }
}

lab3包装；
公共三等舱{
公共静态void main（字符串[]args）{
String[]name={“Alex”、“Barry”、“Cindy”、“Deb”、“Eric”、“Fran”，
“加里”、“海伦”}；
int[][]等级={77,83,96}，{88,67,78}，{92,77,76}，
{ 94, 42, 81 }, { 99, 54, 72 }, { 90, 46, 54 }, { 76, 59, 88 },
{ 94, 69, 88 } };
int S=grades.length；//学生人数
int E=成绩[0]。长度；//考试次数
整数和=0；
对于（int a=0；a第一名）{
第一名=总和；
firstPlaceName=名称[u]；
第二名=第一名；
secondPlaceName=firstPlaceName；
第三名=第二名；
thirdPlaceName=secondPlaceName；
}
如果（总和>第二名和总和！=第一名）{
第二名=总和；
secondPlaceName=名称[u]；
第三名=第二名；
thirdPlaceName=secondPlaceName；
}
如果（总和>第三名和总和！=第一名和总和！=第二名）{
第三位=总和；
thirdPlaceName=名称[u]；
}
}
System.out.println（“平均分最高的学生为：“+firstPlaceName+”，平均分为：“+firstPlace/3”）；
System.out.println（“平均分第二高的学生为：“+secondPlaceName+”，平均分为：“+secondPlaceName/3”）；
System.out.println（“平均分第三高的学生为：“+thirdPlaceName+”，平均分为：“+thirdPlace/3”）；
}
}

我是一个初学者，只是在学习控制结构，这就是为什么我要这样做

好吧，我意识到我想做的更简单，但这仍然是不正确的

我的新代码是： 包装lab3

public class third {

    public static void main(String[] args) {
        String[] names = { "Alex", "Barry", "Cindy", "Deb", "Eric", "Fran",
                "Gary", "Helen" };

        int[][] grades = { { 77, 83, 96 }, { 88, 67, 78 }, { 92, 77, 76 },
                { 94, 42, 81 }, { 99, 54, 72 }, { 90, 46, 54 }, { 76, 59, 88 },
                { 94, 69, 88 } };
        int S = grades.length; // number of students
        int E = grades[0].length; // number of exams
        int sum = 0;
        for (int a = 0; a < S; a++) {
            sum = sum + grades[a][0];
        }
        System.out.println("The class average for test 1 is: " + sum / S);
        sum = 0;
        for (int a = 0; a < S; a++) {
            sum = sum + grades[a][1];
        }
        System.out.println("The class average for test 2 is: " + sum / S);
        sum = 0;
        for (int a = 0; a < S; a++) {
            sum = sum + grades[a][2];
        }
        System.out.println("The class average for test 3 is: " + sum / S);
        for (int a = 0; a < S; a++) {
            sum = 0;
            for (int b = 0; b < E; b++) {
                sum = sum + grades[a][b];
            }
            System.out
                    .println(names[a] + "'s three test average is " + sum / 3);

        }
        int firstPlace = 0;
        String firstPlaceName = "";
        int secondPlace = 0;
        String secondPlaceName = "";
        int thirdPlace = 0;
        String thirdPlaceName = "";
        for (int u = 0; u < S; u++) {
            sum = 0;
            for (int t = 0; t < E; t++) {
                sum = sum + grades[u][t];
            }
            if (sum > firstPlace) {
                firstPlace = sum;
                firstPlaceName = names[u];



            }
            else if(sum>secondPlace){
                secondPlace=sum;
                secondPlaceName=names[u];
            }
            else if(sum>thirdPlace){
                thirdPlace=sum;
                thirdPlaceName=names[u];

            }
            else{

            }
        }
        System.out.println("The student with the highest average is: "+firstPlaceName+" with a average of: "+firstPlace/3);
        System.out.println("The student with the second highest average is: "+secondPlaceName+" with a average of: "+secondPlace/3);
        System.out.println("The student with the third highest average is: "+thirdPlaceName+" with a average of: "+thirdPlace/3);

    }
}

public class third {

    public static void main(String[] args) {
        String[] names = { "Alex", "Barry", "Cindy", "Deb", "Eric", "Fran",
                "Gary", "Helen" };

        int[][] grades = { { 77, 83, 96 }, { 88, 67, 78 }, { 92, 77, 76 },
                { 94, 42, 81 }, { 99, 54, 72 }, { 90, 46, 54 }, { 76, 59, 88 },
                { 94, 69, 88 } };
        int S = grades.length; // number of students
        int E = grades[0].length; // number of exams
        int sum = 0;
        for (int a = 0; a < S; a++) {
            sum = sum + grades[a][0];
        }
        System.out.println("The class average for test 1 is: " + sum / S);
        sum = 0;
        for (int a = 0; a < S; a++) {
            sum = sum + grades[a][1];
        }
        System.out.println("The class average for test 2 is: " + sum / S);
        sum = 0;
        for (int a = 0; a < S; a++) {
            sum = sum + grades[a][2];
        }
        System.out.println("The class average for test 3 is: " + sum / S);
        double[] sg = new double[S];
        for (int a = 0; a < S; a++) {
            sum = 0;
            for (int b = 0; b < E; b++) {
                sum = sum + grades[a][b];
            }
            sg[a] = sum;
            System.out
                    .println(names[a] + "'s three test average is " + sum / 3);

        }
        int firstPlace = 0;
        String firstPlaceName = "";
        int count = 0;
        int remover = 0;
        while (count != 3) {
            count = count + 1;
            remover = 0;
            firstPlace = 0;
            for (int u = 0; u < S; u++) {
                sum = (int) sg[u];
                if (sum > firstPlace) {
                    firstPlace = sum;
                    firstPlaceName = names[u];
                    remover = u;

                }
            }
            System.out.println("The student with the" + "# " + count
                    + " highest average is: " + firstPlaceName
                    + " with a average of: " + firstPlace / 3);
            sg[remover] = 0;
            System.out.println(sg[remover]);
        }

    }
}

公共类第三{
公共静态void main（字符串[]args）{
String[]name={“Alex”、“Barry”、“Cindy”、“Deb”、“Eric”、“Fran”，
“加里”、“海伦”}；
int[][]等级={77,83,96}，{88,67,78}，{92,77,76}，
{ 94, 42, 81 }, { 99, 54, 72 }, { 90, 46, 54 }, { 76, 59, 88 },
{ 94, 69, 88 } };
int S=grades.length；//学生人数
int E=成绩[0]。长度；//考试次数
整数和=0；
对于（int a=0；a第一名）{
第一名=总和；
firstPlaceName=名称[u]；
}
否则，如果（总和>第二名）{
第二名=总和；
secondPlaceName=名称[u]；
}
否则如果（总和>第三位）{
third = second;
second = first;
first = newHighest;