Here is the screenshot of Error message
I was creating a calculator app. It seems the error message is in
display.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (getString(R.string.display).equals(display.getText().toString().length()));{
display.setText("");
}
}
});
Button b0,b1,b2,b3,b4,b5,b6,b7,b8,b9;
Button buttonMult;
Button buttonSub;
Button buttonDec;
Button equal;
Button add;
Button divide;
Button percent;
private EditText display;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
b0 =findViewById(R.id.button0);
b1 =findViewById(R.id.button1);
b2 =findViewById(R.id.button2);
b3 =findViewById(R.id.button3);
b4 = findViewById(R.id.button4);
b5 =findViewById(R.id.button5);
b6 =findViewById(R.id.button6);
b7 =findViewById(R.id.button7);
b8 =findViewById(R.id.button8);
b9 =findViewById(R.id.button9);
buttonMult =findViewById(R.id.buttonMult);
buttonSub =findViewById(R.id.buttonSub);
buttonDec =findViewById(R.id.buttonDec);
add =findViewById(R.id.add);
divide =findViewById(R.id.divide);
percent =findViewById(R.id.percent);
equal =findViewById(R.id.equal);
display = findViewById(R.id.input);
display.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (getString(R.string.display).equals(display.getText().toString().length()));{
display.setText("");
}
}
});
add.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {display.setText("+");
}
});
equal.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {display.setText("=");
}
});
buttonDec.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {display.setText(".");
}
});
buttonSub.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {display.setText("-");
}
});
buttonMult.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {display.setText("*");
}
});
b0.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
display.setText("0");
}
});
b1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
display.setText("1");
}
});
b2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
display.setText("2");
}
});
b3.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
display.setText("3");
}
});
b4.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) { display.setText("4");
}
});
b5.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
display.setText("5");
}
});
b6.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
display.setText("6");
}
});
b7.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
display.setText("7");
}
});
b8.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
display.setText("8");
}
});
b9.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
display.setText("9");
}
});
}
}
