1
好的,我对整体成品有问题,我是新手,所以我无法找到出问题的地方。我输入我的转换类型例如:1(英寸 - 厘米)说,我想知道多少厘米5英寸,它会导致说:12.7厘米= 55.0?让我觉得它为什么这样做,任何帮助都会很棒!转换计算器,结果问题..不正确的随机答案?
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%确定的,但我认为你只是在最后连接两英寸。具体在这里“Math.round(英寸)+英寸;”。尝试将其交换到Math.round(英寸)+“英寸”; – Sh4d0wsPlyr