android : เช็ค password == repassword มีปัญหา เช็คค่าตัวแปรไม่ตรงกัน

public void onClick(View v) {
				String user_name = username.getText().toString().trim();
				String pass_word = password.getText().toString().trim();
				String re_pass_word = re_password.getText().toString().trim();
				String first_name =firstname.getText().toString().trim();
				String last_name = lastname.getText().toString().trim();
				
				if(user_name.length()==0 ||pass_word.length()== 0 || re_pass_word.length() ==0 || first_name.length() == 0 || last_name.length() ==0 ){
					Toast.makeText(context, "Please fill in the form completely. ",Toast.LENGTH_SHORT).show();
				
				}
				if(pass_word != re_pass_word){
					
					Toast.makeText(context, pass_word + re_pass_word, Toast.LENGTH_SHORT).show();
					Toast.makeText(context, "password incorrect", Toast.LENGTH_SHORT).show();
					
						
						
				}if(pass_word == re_pass_word){
						//Ready to sent
						//target : http://localhost/test_projectEnd/insert_users.php