流未关闭导致调用delete方法删除失败

public static void main(String[] args){
    	FileOutputStream fos = null;
    	InputStream inputStream = null;
    	try {
    		File file = new File("c:/test1.txt");
    		if (!file.exists()) {
    			file.createNewFile();
    			// 构造写入文件内容
    			fos = new FileOutputStream(file);
    			fos.write("Hello Wolrd".getBytes());
    		}
    		//此时输入流在使用，删除文件会失败
    		inputStream = new FileInputStream(file);
    		file.delete();
		} catch (Exception e) {
			e.printStackTrace();
		}finally{
			if(fos != null){
				try {
					fos.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
			if(inputStream != null){
				try {
					inputStream.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
		}
    }

file.delete();会删除文件失败，因为前面的InputStream使用到file，而且InputStream没有关闭流；正确的方法是

    	public static void main(String[] args){
    	FileOutputStream fos = null;
    	InputStream inputStream = null;
    	File file = null;
    	try {
    		file = new File("c:/test1.txt");
    		if (!file.exists()) {
    			file.createNewFile();
    			// 构造写入文件内容
    			fos = new FileOutputStream(file);
    			fos.write("Hello Wolrd".getBytes());
    		}
    		//此时输入流在使用，删除文件会失败
    		inputStream = new FileInputStream(file);
    		file.delete();
		} catch (Exception e) {
			e.printStackTrace();
		}finally{
			if(fos != null){
				try {
					fos.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
			if(inputStream != null){
				try {
					inputStream.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
			if(file != null){
				file.delete();
			}
		}
    }