Java抽取使用ArrayList中的數據的字符串

Question

我有一個Java Graphics的問題，我正在寫一個程序，它讀取一個文本文件並顯示一些結果。

例如：

文本文件顯示在屏幕上

print("Text",20,100) 
print("Hello",135,50) 

期望的結果2個字符串。 但我只拿最後一個。

我的代碼示例：

ArrayList<String[]> StringsToDraw = new ArrayList<String[]>(); 

//Add some data to the List 
StringsToDraw.add(new String[] {"Hello","20","35"}); 
StringsToDraw.add(new String[] {"World","100","100"}); 

@Override 
public void paint(Graphics g){ 
    Graphics2D g2d = (Graphics2D) g; 
    for(String[] printMe : StringsToDraw){ 
    drawString(g2d, printMe[0], printMe[1], printMe[2]) 
    } 
} 

public void drawString(Graphics g2d, String text, String xString, String yString){ 
    int x = Integer.parseInt(xString); 
    int y = Integer.parseInt(yString); 
    g2d.drawString(text, x, y); 
} 

我怎樣才能改變它，以便它可以顯示他們兩人？

Answer 1

你的包圍盒可能太小了。嘗試一下，看看它是否適用於你：

public class Graphics2DTest extends JFrame { 
    private static final long serialVersionUID = 1L; 

    public static void main(String[] args) { 
     Graphics2DTest test = new Graphics2DTest(); 
     System.out.println(test); 
    } 

    private List<String[]> StringsToDraw = new ArrayList<String[]>(4); 

    public Graphics2DTest() { 
     super(); 

     StringsToDraw.add(new String[] { "Hello", "20", "35" }); 
     StringsToDraw.add(new String[] { "World", "100", "100" }); 

     setSize(400, 400); 
     setBackground(Color.YELLOW); 
     setForeground(Color.BLUE); 
     setVisible(true); 
    } 

    @Override 
    public void paint(Graphics g) { 
     Graphics2D g2d = (Graphics2D) g; 
     for (String[] printMe : StringsToDraw) { 
      drawString(g2d, printMe[0], printMe[1], printMe[2]); 
     } 
    } 

    public void drawString(Graphics g2d, String text, String xString, 
      String yString) { 
     int x = Integer.parseInt(xString); 
     int y = Integer.parseInt(yString); 
     g2d.drawString(text, x, y); 
    } 
}