如何重置JLabel [英] How to reset JLabel

问题描述

我正在尝试重置JLabel数组.标签的顶部有图像，因此当我按一个按钮时，标签应该被重置.我试图那样做

I am trying to reset an array of JLabels. There are images on the top of the labels so when i press a button the labels are supposed to be reset. I tried to do it like that

 for(int i=0; i<desks.length; i++)
  {
    desks[i].setText("");
    rightPanel.add(desks[i]);
  }

所以如果有人有一个主意，那就太好了.

so if anyone have an idea it would be great.cheers.

推荐答案

这是可能的方法之一

int n = panel.getComponentCount();
if (n > 0) {
    Component[] components = panel.getComponents();
    for (int i = 0; i < components.length; i++) {
         if (components[i] instanceof JLabel) {
             JLabel label = (JLabel) components[i];
             label.setText("");
         } 
    }
}

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