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Java数组歇我得在它的字符串数组。在这个例子中,我将使用一个充满类的数组。而且还有一个数组,其等级通过用户交互得到填补。现在在特定的序列号
,我就拥有了一切,除了其中最后两个班这给更多的研究点,那么剩下的印刷得到双倍的一部分工作,我想不通这哪里出了问题。
一些代码有荷兰人的名字所以这里的翻译列表:
Cijfer是等级
vakken是类
public static void main (String[] args) {
Scanner input = new Scanner(System.in);
final int MAX_ECTS = 39;
int ects = 0;
final int ECTS_VAK = 3;
final int ECTS_PROJECT = 12;
String[] vakkenArray = {"Programming", "Business", "Infrastructure", "Databases", "User Interaction", "Project Fasten Your Seatbelts", "Project Agile Developement"};
double[] cijferArray = new double[7];
for (int i = 0; i < cijferArray.length; i++)
{
System.out.println("Voer A.U.B het cijfer in voor " + vakkenArray[i]);
cijferArray[i] = input.nextDouble();
}
for (int i = 0; i < vakkenArray.length; i++)
{
if (i < 5)
{
if (cijferArray[i] >= 5.5)
{
ects = ects + 3;
System.out.println("Vak/Project:" + vakkenArray[i] + " Cijfer:" + cijferArray[i] + " ECTS Behaald: " + ECTS_VAK);
}
if (cijferArray[i] <= 5.5)
{
System.out.println("Vak/Project:" + vakkenArray[i] + " Cijfer:" + cijferArray[i] + " ECTS Behaald: " + 0);
}
}
else
{
if (vakkenArray[i].equals("Project Fasten Your Seatbelts") && (cijferArray[i] >= 5.5))
{
System.out.println("Vak/Project:" + vakkenArray[i] + " Cijfer:" + cijferArray[i] + " ECTS Behaald: " + ECTS_PROJECT);
ects = ects + 12;
}
else
{
System.out.println("Vak/Project:" + vakkenArray[i] + " Cijfer:" + cijferArray[i] + " ECTS Behaald: " + 0);
}
if (vakkenArray[i].equals("Project Agile Developement") && (cijferArray[i] >= 5.5))
{
System.out.println("Vak/Project:" + vakkenArray[i] + " Cijfer:" + cijferArray[i] + " ECTS Behaald: " + ECTS_PROJECT);
ects = ects + 12;
}
else
{
System.out.println("Vak/Project:" + vakkenArray[i] + " Cijfer:" + cijferArray[i] + " ECTS Behaald: " + 0);
}
}
System.out.println("Totaal behaalde ECTS: " + ects + "/39");
}
这是我的代码的输出:
Vak/Project:Programming Cijfer:5.0 ECTS Behaald: 0
Vak/Project:Business Cijfer:5.0 ECTS Behaald: 0
Vak/Project:Infrastructure Cijfer:5.0 ECTS Behaald: 0
Vak/Project:Databases Cijfer:5.0 ECTS Behaald: 0
Vak/Project:User Interaction Cijfer:5.0 ECTS Behaald: 0
Vak/Project:Project Fasten Your Seatbelts Cijfer:5.0 ECTS Behaald: 0
Vak/Project:Project Fasten Your Seatbelts Cijfer:5.0 ECTS Behaald: 0
Vak/Project:Project Agile Developement Cijfer:5.0 ECTS Behaald: 0
Vak/Project:Project Agile Developement Cijfer:5.0 ECTS Behaald: 0
Totaal behaalde ECTS: 0/39
这是应该的:
Vak/Project:Programming Cijfer:5.0 ECTS Behaald: 0
Vak/Project:Business Cijfer:5.0 ECTS Behaald: 0
Vak/Project:Infrastructure Cijfer:5.0 ECTS Behaald: 0
Vak/Project:Databases Cijfer:5.0 ECTS Behaald: 0
Vak/Project:User Interaction Cijfer:5.0 ECTS Behaald: 0
Vak/Project:Project Fasten Your Seatbelts Cijfer:5.0 ECTS Behaald: 0
Vak/Project:Project Agile Developement Cijfer:5.0 ECTS Behaald: 0
Totaal behaalde ECTS: 0/39
如何看项目得到双面印刷。
不通过''==操作符比较字符串。使用'equals'方法。 ''==比较对象引用(在计算机存储器地址),而不是字符串对象值。 – 2014-09-19 17:02:17
好吧会的。 我不习惯java的,只是还没有那么...... – 2014-09-19 17:03:52
检查本教程例如:http://www.javabeginner.com/ – 2014-09-19 17:04:41