Java:圖形用戶界面（匿名類做爲事件監聽器）

package wj; import java.awt.*; import java.awt.event.*; import javax.swing.*; public class L09_14_Anonymous extends JFrame { JButton jbtn; public L09_14_Anonymous(){ super(「匿名類做爲事件監聽器」); setLayout(new

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