How to get all values from the database

Hello i am using SQLite and i have already insert all my data in to the database how can i retreive it?

this is my insert method

public void insert(String username, String password, String email) {
    ContentValues values = new ContentValues();
    values.put(UsersSQLiteHelper.COLUMN_UNAME, username);
    values.put(UsersSQLiteHelper.COLUMN_PASS, passward);
    values.put(UsersSQLiteHelper.COLUMN_EMAIL, email);
    long insertId = database.insert(UsersSQLiteHelper.TABLE_USERS, null,values);
}