?? calculateresultbean.java~11~
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package calculatebean;import java.awt.*;import javax.swing.JPanel;/** * 這個Bean是用來處理計算的，并且返回計算結果 */public class CalculateResultBean extends JPanel{ BorderLayout borderLayout1 = new BorderLayout(); private String calculateValue; public CalculateResultBean() { try { jbInit(); } catch(Exception ex) { ex.printStackTrace(); } } private void jbInit() throws Exception { this.setLayout(borderLayout1); } public void setCalculateValue(String calculateValue,int X_value,int Y_value) { /* 計算設置器的實現 */ int caresult1 = 0; double caresult2 = 0; String CaReuslt = null; switch(calculateValue) { case "+": { CaResult = Integer.toString(X_value); CaResult = CaResult + " + " + Integer.toString(Y_value); caresult1 = X_value + Y_value; // 做加法運算 CaResult = CaResult + " = " + Integer.toString(caresult1); break; } case "-": { CaResult = Integer.toString(X_value); CaResult = CaResult + " - " + Integer.toString(Y_value); caresult1 = X_value - Y_value; // 做減法運算 CaResult = CaResult + " = " + Integer.toString(caresult1); break; } case "*": { CaResult = Integer.toString(X_value); CaResult = CaResult + " * " + Integer.toString(Y_value); caresult1 = X_value * Y_value; // 做乘法運算 CaResult = CaResult + " = " + Integer.toString(caresult1); break; } case "/": { if(Y_value == 0) { // 如果除數為0 CaResult = Integer.toString(X_value); CaResult = CaResult + " / " + Integer.toString(Y_value); CaResult = CaResult + " = ∞"; } else { // 如果除數不為0 CaResult = Integer.toString(X_value); CaResult = CaResult + " / " + Integer.toString(Y_value); caresult2 = (double)X_value / Y_value; // 做除法運算 CaResult = CaResult + " = " + Double.toString(caresult2); } break; } } this.calculateValue = CaResult; } public String getCalculateValue() { /* 計算獲取器的實現 */ return calculateValue; }}?? 快捷鍵說明
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