java 修改文件名称/批量修改文件名称

修改单个文件

public static void main(String[] args) {
String fileName = "work.doc";
String filePath = "C:/Users/Administrator/Desktop/92个诊疗方案及临床路径/";
File file1 = new File(filePath + fileName );
file1.renameTo(new File(filePath+"new."+ file1.getName().substring(file1.getName().lastIndexOf(".")+1)));
}批量修改
public static void main(String[] args) {
String filePath = "C:/Users/Administrator/Desktop/92个诊疗方案及临床路径/";
File file = new File(filePath);
File[] files = file.listFiles();
int i = 1;
for (File file2 : files) {
if(file2.isFile()){
file2.renameTo(new File(filePath + "NewName" + i + "." + file2.getName().substring(file2.getName().lastIndexOf(".")+1)));
}
i++;
}
}