package edu.monash.fit2081.calculatorapp; import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.view.View; import android.widget.TextView; import android.widget.Toast; import java.text.DecimalFormat; public class MainActivity extends AppCompatActivity { private double valueOne = Double.NaN; private double valueTwo; private static final char ADDITION = '+'; private static final char SUBTRACTION = '-'; private static final char MULTIPLICATION = '*'; private static final char DIVISION = '/'; private static final char NO_OPERATION = '?'; private char CURRENT_ACTION; private DecimalFormat decimalFormat; public TextView interScreen; // Intermediate result Screen  private TextView resultScreen; // Result Screen   @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); // Reference both TextViews  interScreen = (TextView) findViewById(R.id.InterScreen); resultScreen = (TextView) findViewById(R.id.resultScreen); decimalFormat = new DecimalFormat("#.##########"); } public void buttonSevenClick(View v) { interScreen.setText(interScreen.getText() + "7"); } public void buttonEightClick(View v) { interScreen.setText(interScreen.getText() + "8"); } public void buttonNineClick(View v) { interScreen.setText(interScreen.getText() + "9"); } public void buttonDivisionClick(View v) { computeCalculation(); if (Double.isNaN(valueOne)) { showToast("Invalid Key"); } else { CURRENT_ACTION = DIVISION; resultScreen.setText(decimalFormat.format(valueOne) + "/"); interScreen.setText(""); } } public void buttonEqualClick(View v) { // * Update the result TextView by adding the '=' char and result of operation  //* Reset valueOne  // * Set CURRENT_ACTION to NO_OPERATION   } public void buttonClearClick(View v) { /*  * if the intermediate TextView has text then  * delete the last character  * else  * reset valueOne, valueTwo, the content of result TextView,  * and the content of intermediate TextView  * */  } private void computeCalculation() { if (!Double.isNaN(valueOne)) { String valueTwoString = interScreen.getText().toString(); if (!valueTwoString.equals("")) { valueTwo = Double.parseDouble(valueTwoString); interScreen.setText(null); if (CURRENT_ACTION == ADDITION) valueOne = this.valueOne + valueTwo; else if (CURRENT_ACTION == SUBTRACTION) valueOne = this.valueOne - valueTwo; else if (CURRENT_ACTION == MULTIPLICATION) valueOne = this.valueOne * valueTwo; else if (CURRENT_ACTION == DIVISION) valueOne = this.valueOne / valueTwo; } } else { try { valueOne = Double.parseDouble(interScreen.getText().toString()); } catch (Exception e) { } } } private void showToast(String text) { Toast.makeText(this, text, Toast.LENGTH_LONG).show(); } } 

Help translate pseudocode to code in java. I got this calculator app and this is the main activity. I just need to translate 2 parts in the pseudocode comments please help