JAVA IO有关问题

JAVA IO问题
读取A.tex内容删除第一个字符然后写到B.txe 在删除A.txe
能实现么？希望能给个代码!!!谢谢

[解决办法]

Java code

public static void main(String[] args) {        File fa = new File("a.txt");        File fb = new File("b.txt");                try {                        if(!fb.exists()){                fb.createNewFile();            }                        ObjectInputStream ois = new ObjectInputStream (new FileInputStream(fa));            ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream(fb));                        char c = ois.readChar();            oos.writeChar(c);                        oos.close();            ois.close();                        fa.delete();                    } catch (FileNotFoundException e) {            e.printStackTrace();        } catch (IOException e) {            e.printStackTrace();        }    }
[解决办法]
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Java code

public static void main(String[] args) {
        File fa = new File("a.txt");
        File fb = new File("b.txt");
        
        try {
            
            if(!fb.exists()){
      ……