需要帮助! 我试图做一个空的edittext吐司,并发现不断获得浮动错误。应用程序与空浮动编辑文本崩溃
请告知
这是代码:
calcBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
**float bs = Float.parseFloat(basicSalary.getText().toString());**
float tw = Float.parseFloat(totalAllowance.getText().toString());
float mob = String spinTEXT = spinner.getSelectedItem().toString();
if (spinner.getSelectedItem().equals("Select age group")){
Toast.makeText(sghospitalbonuscalculator.this, "Test 123",
Toast.LENGTH_SHORT).show();
}
if (basicSalary.getText().toString().equals("")){
Toast.makeText(sghospitalbonuscalculator.this, "Test 321",
Toast.LENGTH_SHORT).show();
}
这是错误:
java.lang.NumberFormatException: Invalid float: ""
at java.lang.StringToReal.invalidReal(StringToReal.java:63)
at java.lang.StringToReal.parseFloat(StringToReal.java:308)
at java.lang.Float.parseFloat(Float.java:306)
at sg.self.wser.bonuscalc.bonuscalcu$4.onClick(bonuscalcu.java:96)
at android.view.View.performClick(View.java:4756)
at android.view.View$PerformClick.run(View.java:19749)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5221)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
The bonuscalc.java:96 is referring to this line of code:
float bs = Float.parseFloat(basicSalary.getText().toString());
至于敬酒,我试图改变.equals( “”)改为.equals(“”),.equals(null)和.isEmpty,但它仍然不起作用。
请指教! 非常感谢!
编辑后的版本:
代码:
if (basicSalary.getText().toString().equals(0.0)){
Toast.makeText(sghospitalbonuscalculator.this, "Test 321",
Toast.LENGTH_SHORT).show();
}
错误显示:
java.lang.NumberFormatException: Invalid float: ""
你怎么想的浮点数,一个空的空间代表? –
hmmmmmmm 0.0f?如果我错了,请道歉,请赐教! – kaikai
**错误**'java.lang.NumberFormatException:无效的浮点数:“”' –