Java Android如何为计算数字总和的程序设置最大结果限制？

我编写了一个程序，计算用户输入的4个输入值的总和

我想将结果限制为最大值6（任何大于6的结果都返回值“6”）

例如，如果4个数字的总和为10，则它将自动更改为6

java代码是：

EditText editText3;
EditText editText4;
EditText editText6;
EditText editText8;
TextView textViewResult;

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle icicle) {
    super.onCreate(icicle);
    setContentView(R.layout.calculator);

    editText3 = (EditText) findViewById(R.id.editText3);
    editText4 = (EditText) findViewById(R.id.editText4);
    editText6 = (EditText) findViewById(R.id.editText6);
    editText8 = (EditText) findViewById(R.id.editText8);
    textViewResult = (TextView) findViewById(R.id.textViewResult);

    editText3.addTextChangedListener(new TextWatcher() {

        public void beforeTextChanged(CharSequence s, int start, int count,
                                      int after) {
            // TODO Auto-generated method stub
        }

        public void onTextChanged(CharSequence s, int start, int before,
                                  int count) {
            textViewResult.setText(addNumbers());
        }

        public void afterTextChanged(Editable s) {
            // TODO Auto-generated method stub
        }
    });

    editText4.addTextChangedListener(new TextWatcher() {

        public void beforeTextChanged(CharSequence s, int start, int count,
                                      int after) {
            // TODO Auto-generated method stub

        }

        public void onTextChanged(CharSequence s, int start, int before,
                                  int count) {
            textViewResult.setText(addNumbers());

        }

        public void afterTextChanged(Editable s) {
            // TODO Auto-generated method stub

        }
    });

    editText6.addTextChangedListener(new TextWatcher() {

        public void beforeTextChanged(CharSequence s, int start, int count,
                                      int after) {
            // TODO Auto-generated method stub

        }

        public void onTextChanged(CharSequence s, int start, int before,
                                  int count) {
            textViewResult.setText(addNumbers());

        }

        public void afterTextChanged(Editable s) {
            // TODO Auto-generated method stub

        }
    });

    editText8.addTextChangedListener(new TextWatcher() {

        public void beforeTextChanged(CharSequence s, int start, int count,
                                      int after) {
            // TODO Auto-generated method stub

        }

        public void onTextChanged(CharSequence s, int start, int before,
                                  int count) {
            textViewResult.setText(addNumbers());

        }

        public void afterTextChanged(Editable s) {
            // TODO Auto-generated method stub

        }
    });
}

private String addNumbers() {
    int number1;
    int number2;
    int number3;
    int number4;
    if(editText3.getText().toString() != "" && editText3.getText().length() > 0) {
        number1 = Integer.parseInt(editText3.getText().toString());
    } else {
        number1 = 0;
    }
    if(editText4.getText().toString() != "" && editText4.getText().length() > 0) {
        number2 = Integer.parseInt(editText4.getText().toString());
    } else {
        number2 = 0;
    }
    if(editText6.getText().toString() != "" && editText6.getText().length() > 0) {
        number3 = Integer.parseInt(editText6.getText().toString());
    } else {
        number3 = 0;
    }
    if(editText8.getText().toString() != "" && editText8.getText().length() > 0) {
        number4 = Integer.parseInt(editText8.getText().toString());
    } else {
        number4 = 0;
    }

    return Integer.toString((number1*2) + (number2*4) + (number3*2) + (number4*2));

}
}

将：“

返回整数.toString（（number1*2）+（number2*4）+（number3*2）+（number4*2））；

”更改为：

---

这不是一个好主意。你的问题只是关于整数的和。这与Android没有任何关系。您可以执行类似if（sum）>=6的操作，将值6分配给结果字段两个建议：1：使用

TextWatcher（）

的单个实例，并将其传递到每个

addTextChangeListener（）

调用中。2：使用函数处理逻辑，从

EditText

对象获取数字。例如，

int getNumberForInput（编辑文本输入）

int sum = (number1*2) + (number2*4) + (number3*2) + (number4*2);
if(sum>6) sum = 6;
return sum+"";