在程序中切换到下一列有什么用

Question

/t 用于制表符 /n 用于下一行然后什么用于下一列

Answer 1

public void read(View v) {
        Cursor c = dBase.query("employee", null, "id=?", new String[]{ET1.getText().toString()}, null, null, null);

        while (c.moveToNext()) {
            Toast.makeText(getApplicationContext(),
                    c.getInt(0) + "\n" +
                            c.getString(1) + "\n" +
                            c.getString(2) + "\n" +
                            c.getString(3),
                    Toast.LENGTH_LONG).show();
        }

        ET1.setText("" + c.getInt(0));
        ET2.setText("" + c.getString(1));
        ET3.setText("" + c.getString(2));
        ET4.setText("" + c.getString(3));

        Intent i = new Intent(this, AnotherActivity.class);
        i.putExtra("1", "");
        i.putExtra("2", "");
        i.putExtra("3", "");
        i.putExtra("4", "");
        startActivity(i);

        /*write this Code in another activity after SetContentView();  to display data */

        Log.e("1", getIntent().getStringExtra("1"));
        Log.e("2", getIntent().getStringExtra("2"));
        Log.e("3", getIntent().getStringExtra("3"));
        Log.e("4", getIntent().getStringExtra("4"));
    }

Answer 2

1.Change你读取的return类型class获取其他activity中的数据

2.Make 数据库对象 class 并从该对象读取数据示例 YourDBClass db=new YourDBClass(); String[] 结果=db.read();

在程序中切换到下一列有什么用

what is use for switching to next column in programs

java

android

android-api-levels