修改密码

bc_Button=(Button)findViewById(R.id.bc_Button);
edt1=(EditText)findViewById(R.id.edt1);
edt2=(EditText)findViewById(R.id.edt2);
edt3=(EditText)findViewById(R.id.edt3);
bc_Button.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
boolean flag=false;
String ed=edt1.getText().toString();
String ed1=edt2.getText().toString();
String ed2=edt3.getText().toString();

if(!ed.equals("")){
if(!ed1.equals("")){
if(!ed2.equals("")){
if(ed1.equals(ed2)){

flag=true;

}else{
Toast.makeText(Code_Menu.this, "新密码和确认密码不一致！", Toast.LENGTH_SHORT).show();
}
}else{
Toast.makeText(Code_Menu.this, "再次输入不能为空!", Toast.LENGTH_SHORT).show();
}
}else{
Toast.makeText(Code_Menu.this, "新密码不能为空!", Toast.LENGTH_SHORT).show();
}
}else{
Toast.makeText(Code_Menu.this, "旧密码不能为空!", Toast.LENGTH_SHORT).show();
}


if(flag){
   finish();
Toast.makeText(Code_Menu.this, "密码修改成功", Toast.LENGTH_SHORT).show();
}

}
});