JPanel을 이미 확장 한 클래스에서 패널을 중첩시키는 방법은 무엇입니까?

Question

내가 가진 코드는 그냥 평소처럼 추가 할 수 있습니다

public class IncomeStatementPanel extends JPanel 
{ 
    private JLabel costOfGoodSoldIncState = new JLabel("Cost of goods sold", SwingConstants.RIGHT); 
    private JLabel ebitIncState = new JLabel("EBIT", SwingConstants.RIGHT); 
    private JLabel deprecIncState = new JLabel("Depreciation", SwingConstants.RIGHT); 
    ...  

//I want to add more panels to this, but don't know the code to create them. 

    public IncomeStatementPanel() 
    { 
     //Set grid layout for the panel 
     setLayout(new GridLayout(14,2,0,0)); 



    } 

} 

Answer 1

입니다.

public class IncomeStatementPanel extends JPanel 
{ 
    private JLabel costOfGoodSoldIncState = new JLabel("Cost of goods sold", SwingConstants.RIGHT); 
    private JLabel ebitIncState = new JLabel("EBIT", SwingConstants.RIGHT); 
    private JLabel deprecIncState = new JLabel("Depreciation", SwingConstants.RIGHT); 
    private JPanel myPanel = new JPanel(); // Nothing special here 
    ...  

    public IncomeStatementPanel() 
    { 
     //Set grid layout for the panel 
     setLayout(new GridLayout(14,2,0,0)); 
     this.add(myPanel); // Or here. The "this." part is optional by the way. 
    } 

}