private JTextArea textAreaOutput;
textAreaOutput = new JTextArea();
textAreaOutput.setLineWrap(true);
textAreaOutput.setWrapStyleWord(true);
textAreaOutput.setBounds(100, 150, 450, 200);
textAreaOutput.setBorder(new LineBorder(new java.awt.Color(127,157,185), 1, false));
textAreaOutput.setEditable(false);
this.add(textAreaOutput);
想添加一个滚动条 试过
private JScrollPane scroll;
scroll=new JScrollPane(textAreaOutput);
scroll.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);
scroll.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_NEVER);
this.add(scroll);
和
private JPanel panelOutput;
panelOutput = new JPanel();
panelOutput.add(new JScrollPane(textAreaOutput));
this.add(panelOutput);
都失败了 求大佬告诉我哪里有问题