1
好的,我對整體成品有問題,我是新手,所以我無法找到出問題的地方。我輸入我的轉換類型例如:1(英寸 - 釐米)說,我想知道多少釐米5英寸,它會導致說:12.7釐米= 55.0?讓我覺得它爲什麼這樣做,任何幫助都會很棒!轉換計算器,結果問題..不正確的隨機答案?
switch(Integer.parseInt(jTextField1.getText())){
case 1:
InchesToCm();
break;
case 2:
CmToFeet();
break;
case 3:
MetresToYards();
break;
case 4:
KmToMetres();
break;
default:
jLabel8.setText("Error, try again");
break;
}
}
private void InchesToCm() {
double inches, centimetres; //identify variables
String messageOut;
inches = Double.parseDouble(jTextField2.getText()); //get the text
centimetres = (inches*2.54); //preform
messageOut = centimetres + "cm = " + Math.round(inches) + inches; //msg
jLabel8.setText(messageOut);
}
private void CmToFeet() {
double feet, centimetres;
String messageOut;
feet = Double.parseDouble(jTextField2.getText());
centimetres = (feet*30);
messageOut = centimetres + "cm = " + Math.round(feet) + feet;
jLabel8.setText(messageOut);
}
private void MetresToYards() {
double metres, yards;
String messageOut;
yards = Double.parseDouble(jTextField2.getText());
metres = (yards*0.91);
messageOut = metres + "m = " + Math.round(yards) + yards;
jLabel8.setText(messageOut);
}
private void KmToMetres() {
double miles, kilometres;
String messageOut;
miles = Double.parseDouble(jTextField2.getText());
kilometres = (miles*1.6);
messageOut = kilometres + "km = " + Math.round(miles) + miles;
jLabel8.setText(messageOut);
}
我不是100%確定的,但我認爲你只是在最後連接兩英寸。具體在這裏「Math.round(英寸)+英寸;」。嘗試將其交換到Math.round(英寸)+「英寸」; – Sh4d0wsPlyr