try { PrintWriter pw = response.getWriter(); int x = 98; pw.write(x); pw.print(x); } catch (IOException e) { e.printStackTrace(); }
输出:b 98
最终都是重写了抽象类Writer里面的write方法
print方法可以将各种类型的数据转换成字符串的形式输出。重载的write方法只能输出字符、字符数组、字符串等与字符相关的数据。
查看一下源码(java.io.PrintWriter):
1:write方法:
public void write(int c) {- try {
- synchronized (lock) {
- ensureOpen();
- out.write(c);
- }
- }
- catch (InterruptedIOException x) {
- Thread.currentThread().interrupt();
- }
- catch (IOException x) {
- trouble = true;
- }
- }
2:print方法:
- public void print(int i) {
- rite(String.valueOf(i));
- }