Question

我试图用“ int”值制作一个非常简单的计算器。问题是：无论计算出多少数字，答案都是“ 0”。我的代码有什么问题，我该如何解决？（例如，这是我的代码，还有其他内容）

    private EditText input;
    private EditText input2;
    private TextView result;
    private Button plus;

    private String inputStr;
    private String input2Str;

    private int inp1;
    private int inp2;
    private int rslt;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        input = findViewById(R.id.input);
        input2 = findViewById(R.id.input2);
        result = findViewById(R.id.result);
        plus = findViewById(R.id.plus_btn);

       input.setOnClickListener(v -> {
            inputStr = input.getText().toString();
            inp1 = Integer.parseInt(inputStr);
        });
        input2.setOnClickListener(v -> {
            input2Str = input2.getText().toString();
            inp2 = Integer.parseInt(input2Str);
        });


        rslt = 0;
        plus.setOnClickListener(v -> {
            rslt = inp1 + inp2;
            result.setText(String.valueOf(rslt));
        });

Answer 1

const { players } = this.state
const { card } = this.props.classes

return (
    <div className="GameConfig">
        <h1>Salon de jeu</h1>
        <div className="well" style={this.wellStyles}>
            <h2>Informations</h2>
            Id : {this.gameId}
            <br></br>
            <h2>Players (0/2)</h2>
            <div id="cards">
            </div>
            {players.map(player =>
                <Card className={card} key={player}>
                    <CardHeader
                        avatar={
                            <Avatar style={{ backgroundColor: "#00FF00" }} aria-label="Recipe">
                                R
                            </Avatar>
                        }
                        action={
                            <IconButton>
                                <MoreVertIcon />
                            </IconButton>
                        }
                        title={player}
                        subheader=""
                    />
                </Card>
            )}
            <form onSubmit={this.handleFormSubmit}>
                <br></br>
                <Button bsStyle="primary" type="submit" bsSize="large" block>
                    Lancer la partie
                </Button>
            </form>
        </div>
        <ToastContainer store={ToastStore} />
    </div>
)

如何修复错误的数学计算？

1 个答案: