这个实施怎么样
import java.io.IOException;
import java.io.InputStream;
import javax.swing.JTextField;
public class JTextFieldInputStream extends InputStream {
byte[] contents;
int pointer = 0;
public JTextFieldInputStream(final JTextField text) {
text.addKeyListener(new KeyAdapter() {
@Override
public void keyReleased(KeyEvent e) {
if(e.getKeyChar()=='\n'){
contents = text.getText().getBytes();
pointer = 0;
text.setText("");
}
super.keyReleased(e);
}
});
}
@Override
public int read() throws IOException {
if(pointer >= contents.length) return -1;
return this.contents[pointer++];
}
}
要使用此输入流，请执行以下操作
InputStream in = new JTextFieldInputStream( someTextField );
char c;
while( (c = in.read()) != -1){
//do whatever with c
}
它只有在我按Enter键时才读吗？
它在您调用时读取，in.read()如果返回值-1表示流结束
（并且我将能够进行修改，以使Enter键清空JTextField吗？）
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