我的xml中有2个textviews,1个editbox和1个按钮。
在我的代码中,这一行无效:
if(c.equals(str)){
Toast.makeText(GameActivity.this, "Alright",Toast.LENGTH_LONG).show();
}
但是下一行(else)正在工作,在这两种情况下(如果& else)显示else函数toast(“Wrong”)。
我的代码是:
public class GameActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.game);
Button b1 = (Button) findViewById(R.id.button1);
b1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
TextView tv = (TextView) findViewById(R.id.textView1);
TextView tv2 = (TextView) findViewById(R.id.textView2);
Random r = new Random();
int i = r.nextInt(10 - 2) + 2;
tv.setText(i +"");
Random r1 = new Random();
int j = r1.nextInt((9 - 2) + 1) + 2;
tv2.setText(j +"");
int a = Integer.parseInt(tv.getText().toString());
int b = Integer.parseInt(tv2.getText().toString());
int result = a*b;
String str = String.valueOf(result);
EditText txt4 = (EditText) findViewById(R.id.editText1);
String c = txt4.getText().toString();
if(TextUtils.isEmpty(txt4.getText().toString())) {
txt4.setError("Please enter your answer");
return;
}
if(c.equals(str)){
Toast.makeText(GameActivity.this, "Alright",Toast.LENGTH_LONG).show();
}
else{
Toast.makeText(GameActivity.this, "wrong",Toast.LENGTH_LONG).show();
}
txt4.setText("");
}
});
}
答案 0 :(得分:1)
而不是
String str = String.valueOf(result);
你应该使用
String str = Integer.toString(result);
答案 1 :(得分:1)
试试这个, 我得到了结果
public class Test extends AppCompatActivity {
Button b1;
TextView t1,t2;
EditText e1;
int a,b;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_test);
b1 = (Button) findViewById(R.id.button2);
t1=(TextView) findViewById(R.id.textView4);
t2=(TextView) findViewById(R.id.textView5);
e1=(EditText) findViewById(R.id.editText);
Random r = new Random();
int i = r.nextInt(10 - 2) + 2;
t1.setText(i +"");
Random r1 = new Random();
int j = r1.nextInt((9 - 2) + 1) + 2;
t2.setText(j +"");
a = Integer.parseInt(t1.getText().toString());
b = Integer.parseInt(t2.getText().toString());
b1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
int result = a*b;
String str = String.valueOf(result);
String c = e1.getText().toString();
if(TextUtils.isEmpty(c)) {
e1.setError("Please enter your answer");
return;
}
if(c.equals(str)){
Toast.makeText(Test.this, "Alright",Toast.LENGTH_LONG).show();
}
else{
Toast.makeText(Test.this, "wrong",Toast.LENGTH_LONG).show();
}
e1.setText("");
}
});
}}