在java.awt.event.KeyListener中,如何检查用户输入的是“+”还是“-”?
最佳答案
以下是如何执行此操作的代码示例:
TextField field = new TextField();
field.addKeyListener(new KeyListener() {
public void keyTyped(KeyEvent e) {
final char aChar = e.getKeyChar();
if (aChar == '+') {
System.out.println("+ was typed");
}
if (aChar == '-') {
System.out.println("- was typed");
}
}
public void keyPressed(KeyEvent e) {
}
public void keyReleased(KeyEvent e) {
}
});
关于java - 如何检查KeyListener输入?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/4337483/