文本域比较错误

Question

我正在尝试检查一个字符串是否等于默认值或什么都没有，但它一直在我的检查中漏掉。有任何想法吗？检查：

if( lblEnterServerIp.getText() == null|| lblEnterServerIp.getText().isEmpty() || lblEnterServerIp.getText().equals("000.000.000.000")) {
        popUp("No IP address entered");
        return;
    }else {
        ip = lblEnterServerIp.getText().split("\:")[0];
    }

设置文本域：

ipField = new JTextField();
    ipField.setBounds(124, 201, 86, 20);
    ipField.setText("000.000.000.000");
    panel_1.add(ipField);
    ipField.setColumns(10);

Answer 1

"The field is named ipField but you check lblEnterServerIp. According to the name, you are performing checks on a label instead of the text field" BackSlash 在答案的评论中提供的答案。

文本域比较错误

Textfeild Comparing errors

java

jtextfield