我遇到编译错误，这个程序语言是Java。 它是一个简单的程序，可以为用户提供等级和打印统计数据......任何帮助都会很棒......
现在进一步发展 这是错误输出：
C： - 11 \ SummariseGrades.java:60：错误：不兼容的类型：int无法转换为int [] for（int []年级：studentGrades） ^ C： - 11 \ SummariseGrades.java：63：错误：二元运算符'＆lt;'的错误操作数类型 if（等级＆lt; lowGrade） ^ 第一种类型：int [] 第二种类型：int C： - 11 \ SummariseGrades.java:64：错误：不兼容的类型：int []无法转换为int lowGrade = grade; ^ C： - 11 \ SummariseGrades.java:82:error：找不到符号 for（int []年级：studentGrades） ^ 符号：变量studentGrades 地点：班级SummariseGrades C： - 11 \ SummariseGrades.java:85：错误：不兼容的类型：int无法转换为int [] for（int [] studentGrades：grade） ^ C： - 11 \ SummariseGrades.java:88：错误：二元运算符'＆gt;'的错误操作数类型 if（等级＆gt; highGrade） ^ 第一种类型：int [] 第二种类型：int C： - 11 \ SummariseGrades.java:89:error：不兼容的类型：int []无法转换为int highGrade = grade; ^ C： - 11 \ SummariseGrades.java:123：错误：变量等级已在方法outputBarChart（int [] []）中定义 for（int [] grade：studentGrades） ^ C： - 11 \ SummariseGrades.java:123：错误：不兼容的类型：int无法转换为int [] for（int [] grade：studentGrades） ^ C： - 11 \ SummariseGrades.java:124：错误：找不到符号 ++频率[等级/ 10]; ^ 符号：可变等级 地点：班级SummariseGrades C： - 11 \ SummariseGrades.java:166：错误：找不到符号 System.out.printf（“Student％2d”，student + 1）; ^ 符号：变量学生 地点：班级SummariseGrades C： - 11 \ SummariseGrades.java:168：错误：找不到符号 for（int test：grade [student]）//输出学生成绩 ^ 符号：变量学生 地点：班级SummariseGrades C： - 11 \ SummariseGrades.java:173：错误：找不到符号 double average = getAverage（成绩[学生]）; ^ 符号：变量学生 地点：班级SummariseGrades 13个错误
工具已完成，退出代码为1
******这是代码
public class SummariseGrades
{
public static void main (String[]args)
{
//2d array of student grades
int [][] gradesArray =
{ { 87,96,70 },
{ 68,87,90 },
{ 94,100,90 },
{ 100,81,82},
{ 83,65,85},
{ 78,87,85},
{ 85,75,83},
{ 91,94,100},
{ 76,72,84},
{ 87,93,73} };
//output grades array
outputGrades ( gradesArray );
//call methods getMinimum and getMaximum
System.out.printf ("\n %s %d \n %s %d \n \n",
"Lowest grade is", getMinimum ( gradesArray ),
"Highest grade is", getMaximum (gradesArray ) ) ;
//output grade distribution chart of all grades on all tests
outputBarChart (gradesArray);
} //end main
//find minimum grade
public static int getMinimum (int grades [][])
{
//assume first element of grades array is the minumum
int lowGrade = grades [0][0];
//loop through rows of grades array
for (int [] studentGrades : grades )
{
//loop throught the columns of current row
for (int [] grade : studentGrades )
{
//if grade less than lowGrade, assign it to lowGrade
if (grade < lowGrade)
lowGrade = grade ;
} //end inner
}//end outer
return lowGrade; // returns lowest grade
} //end method getMinimum
//find maximum grade
public static int getMaximum (int grades [][])
{
//assume first element is the largest in array
int highGrade = grades [0][0];
//loop through rows of the grades array
for (int[] grade : studentGrades)
{
//loop through columns of the current row
for (int[] studentGrades : grade)
{
//if grade greater than highGrade then assign it to highGrade
if (grade > highGrade)
highGrade = grade;
} //end inner
} //end outer
return highGrade; // return highest grade
} //end method getMaximum
//determine average grade for particular set of grades
public static double getAverage (int[] setOfGrades )
{
int total = 0; // initialise total
//sum grades for one student
for (int grade : setOfGrades)
total += grade;
//return average of grades
return (double) total / setOfGrades.length;
} //end method for getAverage
//output bar chart displaying overall grade distribution
public static void outputBarChart (int grades[][])
{
System.out.println ("Overall grade distribution:");
//stores the frequency of grades in each range of 10 grades
int[] frequency = new int [11];
// for each grade in the grade book, increment the appropriate frequency
for (int [] studentGrades : grades)
{
for (int [] grades : studentGrades)
++frequency [ grade / 10 ];
} //end outer
//for each grade freq, print bar in chart
for (int count = 0 ; count < frequency.length ; count++)
{
//output bar label
if (count ==10)
System.out.printf ( "%5d: ", 100);
else
System.out.printf ("&02d-%02d: ",
count * 10, count * 10 + 9 );
//print bar of asterisks
for (int stars = 0 ; stars < frequency [ count ] ; stars++)
System.out.print ("*");
System.out.println(); //start a new line of output
} //end outer for loop
} //end method for outputBarChart
//output contents of the grades array
public static void outputGrades ( int grades [][])
{
System.out.println ("The grades are:\n");
System.out.print (" "); //align column heads
// create a column heading for each of the tests
for (int test = 0 ; test < grades [0].length; test ++)
System.out.printf ("Test %d ", test + 1);
System.out.println ("Average"); //student average column heading
//create rows and columns of text representing array grades
for (int student = 0 ; student < grades.length ; student ++);
{
System.out.printf ("Student %2d", student + 1);
for ( int test: grades [ student ] ) // output student grades
System.out.printf ("%8d", test );
// call method getAverage to calculate the student's average grade
// pass row of grades as the argument to getAverage
double average = getAverage (grades [ student ] ) ;
System.out.printf ("%9.2f \r", average );
} // end outer for
} // end method outputGrades
} // end class Summerise Grades
答案 0 :(得分：3)
复制将代码粘贴到IDE中并出现Syntax error on token ")", delete this token错误（将来，请发布您确切的编译错误）
这是因为您在)电话的第一行末尾有一个额外的System.out.printf：
System.out.printf ("\n %s %d \n %s %d \n \n",
"Lowest grade is", getMinimum ( gradesArray ),
"Highest grade is", getMaximum (gradesArray ) ) ;