不可编译的源代码 - 错误的sym类型：java.io.File.getSampleV [英] Uncompilable source code - Erroneous sym type: java.io.File.getSampleV

问题描述

  import java.io.File; 
 
 import java.io.FileInputStream; 
 
 // import javax.swing.JFrame; 
 public class filterpanitha {
 // public void graph（）{
 
 //} 
 / ** 
 * @param args 
 * / 
 public static void main（String [] args）{
 //首先，从.wav格式的声音文件中获取数据到您的程序
 //您将不得不修改下面一行指向你自己的文件
 // String fileName =C：\\Huhns\\Teaching\\CSCE145\\Code\\Noise3\\ preamble.wav; 
 FileInputStream fileInputStream = null; 
档案档案=新档案（C：\\\\\ Users \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\）; 
 //接下来，打印声音以找出样本中的长度
 System.out.println（file）; 
 //以下两个方法调用获取声音样本的值
 // index 1000，然后将其值设置为原始值的一半。 
 int index = 1000; 
 int value = file.getSampleValueAt（index）; 
 file.setSampleValueAt（index，value / 2）; 
 //下面的循环将每个声音样本设置为其原始值的两倍
 for（int n = 0; n  value = file。 getSampleValueAt（N）; 
 file.setSampleValueAt（n，value * 2）; 
} 
 
 //收听声音
 //sound1.play（）; 
 
 
 $ / code $ / pre 
 
当我运行它的时候请帮助
 
 
 pre $ 线程main中的异常java.lang.RuntimeException：不可编译的源代码 - 错误的sym类型：java.io.File.getSampleValueAt 
在Prepro.filterpanitha.main（filterpanitha.java:41）
  

我不知道为什么它的pooping如果是这样的话，那么...请帮助解决方案

这个例外 java.lang.RuntimeException：当使用一个允许你运行项目/代码的IDE时，即使某些类没有被编译，也会看到不可编译的源代码码）。我建议修复你的代码，在运行你的项目之前你没有任何错误。

另外， java.io.File 从来没有方法 setSampleValueAt（）。这是导致你的代码永远不会编译的原因。

import java.io.File;

import java.io.FileInputStream;

//import javax.swing.JFrame;
public class filterpanitha {
//public void graph(){

//}
/**
 * @param args
 */
public static void main(String[] args) {
    // First, get the data from a sound file in .wav format into your program
    // You will have to modify the following line to point to your own file
    // String fileName = "C:\\Huhns\\Teaching\\CSCE145\\Code\\Noise3\\preamble.wav";
    FileInputStream fileInputStream = null;
    File file = new File("C:\\Users\\sudharshan_03713\\Desktop\\audio\\1A5.wav");
    // Next, print the sound to find out its length in samples
    System.out.println(file);
    // The following two methods calls get the value of a sound sample at
    // index 1000 and then set its value to half of the original.
    int index = 1000;
    int value = file.getSampleValueAt(index);
    file.setSampleValueAt(index, value / 2);
    // The following loop sets every sound sample to be twice its original value
    for (int n = 0; n < file.getNumSamples(); n++) {
        value = file.getSampleValueAt(n);
        file.setSampleValueAt(n, value * 2);
    }

    // Listen to the sound
    //sound1.play();
}
}

please help when i run its says

Exception in thread "main" java.lang.RuntimeException: Uncompilable source code - Erroneous sym type: java.io.File.getSampleValueAt
 at Prepro.filterpanitha.main(filterpanitha.java:41)   

i have no idea why its pooping up ...is ther any audio format i need to look in to if so how ...please help

解决方案

This exception java.lang.RuntimeException: Uncompilable source code is seen when using an IDE which allows you to run your project/code, even if some classes are not compiled (due to errors in code). I suggest fixing your code and you have zero errors before running your project.

Also, java.io.File never have the method setSampleValueAt(). This is what causes your code to never compile.

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