Question

我想用名字填充数组。应该根据角色的性别来填充数组。

public void fillNameArray() throws IOException {
    Character character = new Character(); //Declare and initialise character object

    if(character.getGender() == "F"){ 
        List<String> lines = new ArrayList<String>();
        BufferedReader reader = null;
        try {
            reader = new BufferedReader(new FileReader("femaleNames.txt"));
            String line = null;
            while ((line = reader.readLine()) != null) {
                lines.add(line);
            }
        } finally {
            reader.close();
        }
        String[] array = (String[]) lines.toArray();
    }
    else{
        List<String> lines = new ArrayList<String>();
        BufferedReader reader = null;
        try {
            reader = new BufferedReader(new FileReader("maleNames.txt"));
            String line = null;
            while ((line = reader.readLine()) != null) {
                lines.add(line);
            }
        } finally {
            reader.close();
        }
        String[] array = (String[]) lines.toArray();
    }

}

Answer 1

问题出在以下几行：

String[] array = (String[]) lines.toArray();

改为写：

String[] array = lines.toArray(new String[lines.size()]);

请参阅post作为示例。

请问您还可以使用自己的方法移动读取代码吗？所以代码重复较少。

public List<String> readNames(String file) {
    List<String> lines = new ArrayList<String>();
    BufferedReader reader = null;
    try {
        reader = new BufferedReader(new FileReader(file));
        String line = null;
        while ((line = reader.readLine()) != null) {
            lines.add(line);
        }
    } finally {
        reader.close();
    }
    return lines;
}

根据字符的性别从文本文件填充数组

1 个答案: