相对路径不报错也不能正常执行

Question

package class_properties;

import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.InputStream;
import java.io.Writer;
import java.util.Properties;
public class Properties_test {

public static void main(String[] args) {
    new Properties_test().trans_Properties();
}

public void trans_Properties(){
    Properties p = new Properties();

    try(InputStream incube = new FileInputStream(this.getClass().getResource("/material/properties_copy").getFile());
            ) {
        p.load(incube);

    } catch (Exception e) {
        e.printStackTrace();
    }
    System.out.println(p);
    String str = "ABC";
    try(Writer outcube = new FileWriter(this.getClass().getResource("/material/properties").getFile(),true);

            //Writer outcube = new FileWriter("/C:/Users/crf/Desktop/ppp.txt",true);
            //Writer outcube = new FileWriter("G:/java/IO_Stream/src/material/properties",true)
            ){
        System.out.println(this.getClass().getResource("/material/properties").getFile());
        outcube.write(str);
        //p.store(outcube,"properties");
        System.out.println(p);
    } catch (Exception e) {
        e.printStackTrace();
    }
}

}

以上代码的Writer outcube 中写入相对路径，为什么不能写入指定内容，但也不报错呢？

Answer 1

写完以后没有关闭啊兄弟