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Demopans/java_com_example_jgao6211_testcalcpleaseignore_I.java

Last active September 19, 2019 01:19
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java_com_example_jgao6211_testcalcpleaseignore_I.java
package com.example.jgao6211.testcalcpleaseignore;
/**
* Created by jgao6211 on 4/13/2018.
* BETA
*/
public class I {
private double real;
private double imaginary;
public I(String input) {
boolean flag = true;
int i = 1;
if (input.indexOf("i") == input.length() - 1) {
for (int x = 0; x < input.length() && flag; x++) {
if (input.substring(x, x + 1).equals("+")) {
i = x;
flag = false;
}
}
if (input.substring(0, 1).equals("n")) {
this.real = -1 * Double.parseDouble(input.substring(1, i));
} else {
this.real = Double.parseDouble(input.substring(0, i));
}
if (input.substring(i + 1, i + 2).equals("n")) {
this.imaginary = -1 * Double.parseDouble(input.substring(i + 2));
} else {
this.imaginary = Double.parseDouble(input.substring(i + 1));
}
} else {
for (int x = 0; x < input.length() && flag; x++) {
if (input.substring(x, x + 1).equals("+")) {
i = x;
flag = false;
}
}
if (input.substring(0, 1).equals("n")) {
this.imaginary = -1 * Double.parseDouble(input.substring(1, i));
} else {
this.imaginary = Double.parseDouble(input.substring(0, i));
}
if (input.substring(i + 1, i + 2).equals("n")) {
this.real = -1 * Double.parseDouble(input.substring(i + 2));
} else {
this.real = Double.parseDouble(input.substring(i + 1));
}
}
}
public I add(I a) {
double b, c;
b = this.real + a.real;
c = this.imaginary + a.imaginary;
return new I("" + b + "+" + c + "i");
}
public I multiply(I a) {
double b = this.real * a.real - this.imaginary * a.imaginary;
double c = this.real * a.imaginary + this.imaginary * a.real;
String d = "" + b + "+" + c + "i";
return new I(d);
}
public I divide(I a) {
I c = new I("" + a.real + "+" + -1 * a.imaginary);
I top = this.multiply(c);
I bot = a.multiply(c);
return new I("" + top.real / bot.real + "+" + top.imaginary / bot.real + "i");
}
}
Raw
java_com_example_jgao6211_testcalcpleaseignore_MainActivity.java
package com.example.jgao6211.testcalcpleaseignore;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
TextView display;
String out;
Button div;
Button mult;
boolean radMode = true;
public MainActivity() {
out = "";
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
//Parameters
public void setTrigMode(View v) {
radMode = !radMode;
}
//Set Numbers
public void dis0(View v) {
display = findViewById(R.id.display);
div = findViewById(R.id.buttonDiv);
mult = findViewById(R.id.buttonX);
mult.setClickable(true);
div.setClickable(true);
out += "0";
display.setText(out);
}
public void dis1(View v) {
display = findViewById(R.id.display);
div = findViewById(R.id.buttonDiv);
mult = findViewById(R.id.buttonX);
mult.setClickable(true);
div.setClickable(true);
out += "1";
display.setText(out);
}
public void dis2(View v) {
display = findViewById(R.id.display);
div = findViewById(R.id.buttonDiv);
mult = findViewById(R.id.buttonX);
mult.setClickable(true);
div.setClickable(true);
out += "2";
display.setText(out);
}
public void dis3(View v) {
display = findViewById(R.id.display);
div = findViewById(R.id.buttonDiv);
mult = findViewById(R.id.buttonX);
mult.setClickable(true);
div.setClickable(true);
out += "3";
display.setText(out);
}
public void dis4(View v) {
display = findViewById(R.id.display);
div = findViewById(R.id.buttonDiv);
mult = findViewById(R.id.buttonX);
mult.setClickable(true);
div.setClickable(true);
out += "4";
display.setText(out);
}
public void dis5(View v) {
display = findViewById(R.id.display);
div = findViewById(R.id.buttonDiv);
mult = findViewById(R.id.buttonX);
mult.setClickable(true);
div.setClickable(true);
out += "5";
display.setText(out);
}
public void dis6(View v) {
display = findViewById(R.id.display);
div = findViewById(R.id.buttonDiv);
mult = findViewById(R.id.buttonX);
mult.setClickable(true);
div.setClickable(true);
out += "6";
display.setText(out);
}
public void dis7(View v) {
display = findViewById(R.id.display);
div = findViewById(R.id.buttonDiv);
mult = findViewById(R.id.buttonX);
mult.setClickable(true);
div.setClickable(true);
out += "7";
display.setText(out);
}
public void dis8(View v) {
display = findViewById(R.id.display);
div = findViewById(R.id.buttonDiv);
mult = findViewById(R.id.buttonX);
mult.setClickable(true);
div.setClickable(true);
out += "8";
display.setText(out);
}
public void dis9(View v) {
display = findViewById(R.id.display);
div = findViewById(R.id.buttonDiv);
mult = findViewById(R.id.buttonX);
mult.setClickable(true);
div.setClickable(true);
out += "9";
display.setText(out);
}
public void disDot(View v) {
display = findViewById(R.id.display);
out += ".";
display.setText(out);
}
public void disI(View v) {
display = findViewById(R.id.display);
out += "i";
display.setText(out);
}
//Set Operators
public void disFactorial(View v) {
display = findViewById(R.id.display);
out += "!";
display.setText(out);
}
public void disPO(View v) {
display = findViewById(R.id.display);
out += "(";
display.setText(out);
}
public void disPC(View v) {
display = findViewById(R.id.display);
out += ")";
display.setText(out);
}
public void disExp(View v) {
display = findViewById(R.id.display);
out += "^";
display.setText(out);
}
public void disSin(View v) {
display = findViewById(R.id.display);
out += "sin(";
display.setText(out);
}
public void disCos(View v) {
display = findViewById(R.id.display);
out += "cos(";
display.setText(out);
}
public void disTan(View v) {
display = findViewById(R.id.display);
out += "tan(";
display.setText(out);
}
public void div(View v) {
div = findViewById(R.id.buttonDiv);
mult = findViewById(R.id.buttonX);
mult.setClickable(false);
div.setClickable(false);
out = out + "/";
display.setText(out);
}
public void mult(View v) {
div = findViewById(R.id.buttonDiv);
mult = findViewById(R.id.buttonX);
mult.setClickable(false);
div.setClickable(false);
out = out + "x";
display.setText(out);
}
public void plus(View v) {
div = findViewById(R.id.buttonDiv);
mult = findViewById(R.id.buttonX);
mult.setClickable(false);
div.setClickable(false);
out = out + "+";
display.setText(out);
}
public void minus(View v) {
display = findViewById(R.id.display);
div = findViewById(R.id.buttonDiv);
mult = findViewById(R.id.buttonX);
mult.setClickable(false);
div.setClickable(false);
out = out + "-";
display.setText(out);
}
public void del(View v) {
display = findViewById(R.id.display);
mult = findViewById(R.id.buttonX);
div = findViewById(R.id.buttonDiv);
out = out.substring(0, out.length() - 1);
display.setText(out);
if (!mult.isClickable()) {
mult.setClickable(true);
} else if (!div.isClickable()) {
div.setClickable(true);
}
}
public void clear(View v) {
display = findViewById(R.id.display);
mult = findViewById(R.id.buttonX);
div = findViewById(R.id.buttonDiv);
out = "";
display.setText(out);
if (!mult.isClickable()) {
mult.setClickable(true);
} else if (!div.isClickable()) {
div.setClickable(true);
}
}
public void solve(View v) {
int pCount = 0, pTest = 0;
out = conNeg(out);
out = calcFactorial(out);
out = conTrig(out);
for (int i = 0; i < out.length(); i++) {
if (out.substring(i, i + 1).equals("(")) {
pCount++;
}
}
for (int i = 0; i < out.length(); i++) {
if (out.substring(i, i + 1).equals(")")) {
pTest++;
}
}
out = calcTrig(out);
if (out.contains("/0")) {
out = "divideByZeroError";
} else if (pCount != pTest) {
out = "syntaxError";
} else {
if (pCount != 0) {
for (int q = 0; q < out.length() - 2; q++) {
if (out.substring(q, q + 2).equals(")(")) {
out = out.substring(0, q) + ")x(" + out.substring(q + 2);
q--;
}
}
for (int asd = 0; asd <= pCount; asd++) {
boolean flag = true;
int posPo = 0, posPc = out.length();
for (int i = 0; i < out.length(); i++) {//find innermost parentheses
if (out.substring(i, i + 1).equals("(")) {
posPo = i;
}
}
for (int x = posPo; (x < out.length()) && flag; x++) {
if (out.substring(x, x + 1).equals(")")) {
posPc = x;
flag = false;
}
}
if (out.substring(out.length() - 1, out.length()).equals(")")) {
out = out.substring(0, posPo) + subsolve(posPo + 1, posPc);
pCount--;
} else {
out = out.substring(0, posPo) + subsolve(posPo + 1, posPc) + out.substring(posPc + 1);
pCount--;
}
}
} else {
out = subsolve(0, out.length());
}
out = subsolve(0, out.length());
}
try {
if (out.substring(out.length() - 2).equals(".0")) {
out = out.substring(0, out.indexOf("."));
}
} catch (Exception ignored) {
}
if (out.substring(0, 1).equals("n")) {
out = "-" + out.substring(1);
}
display.setText(out);
}
public int f(int x) {
if (x == 0) {
return 1;
} else {
return x * f(x - 1);
}
}
public String calcFactorial(String q) {
int posLastOP = 0;
boolean flag1 = true, flag2 = true;
int a, b;
for (int i = 0; i < q.length(); i++) {
if (q.substring(i, i + 1).equals("!")) {
for (int x = i - 1; x >= 0 && flag1; x--) {
if (q.substring(x, x + 1).equals("x") || q.substring(x, x + 1).equals("/") || q.substring(x, x + 1).equals("+") || q.substring(x, x + 1).equals("-") || q.substring(x, x + 1).equals("^")) {
posLastOP = x;
flag1 = false;
} else if (x == 0) {
posLastOP = -1;
flag1 = false;
}
}
if (q.substring(posLastOP + 1, posLastOP + 2).equals("n")) {
return "domainError";
} else if (q.contains(".")) {
return "syntaxError";
} else {
a = Integer.parseInt(q.substring(posLastOP + 1, i));
b = f(a);
}
q = q.substring(0, posLastOP + 1) + b + q.substring(i + 1);
}
}
return q;
}
public String calcTrig(String q) {
for (int z = 0; z < q.length() - 5; z++) {
if (radMode) {
boolean flag = true;
int a = q.length();
if (q.substring(z, z + 4).equals("sin[")) {
for (int i = 0; i < q.length() && flag; i++) {
if (q.substring(i, i + 1).equals("]")) {
a = i;
flag = false;
}
}
q = q.substring(0, z) + Math.sin(Double.parseDouble(q.substring(z + 4, a))) + q.substring(a + 1);
} else if (q.substring(z, z + 4).equals("cos[")) {
for (int i = 0; i < q.length() && flag; i++) {
if (q.substring(i, i + 1).equals("]")) {
a = i;
flag = false;
}
}
q = q.substring(0, z) + Math.cos(Double.parseDouble(q.substring(z + 4, a))) + q.substring(a + 1);
} else if (q.substring(z, z + 4).equals("tan[")) {
for (int i = 0; i < q.length() && flag; i++) {
if (q.substring(i, i + 1).equals("]")) {
a = i;
flag = false;
}
}
q = q.substring(0, z) + Math.tan(Double.parseDouble(q.substring(z + 4, a))) + q.substring(a + 1);
}
} else {
boolean flag = true;
double Pi = 3.14159265358979323846264338327950288419716939937510582097494459230781640628620899862803482534211706798214808651328230664709384460955058223172535940812848111745028410270193852110555964462294895493038196442881097566593344612847564823378678316527120190914564856692346034861045432664821339360726024914127372458700660631558817488152092096282925409171536436789259036001133053054882046652138414695194151160943305727036575959195309218611738193261179310511854807446237996274956735188575272489122793818301194912983367336244065664308602139494639522473719070217986094370277053921717629317675238467481846766940513200056812714526356082778577134275778960917363717872146844090122495343014654958537105079227968925892354201995611212902196086403441815981362977477130996051870721134999999837297804995105973173281609631859502445945534690830264252230825334468503526193118817101000313783875288658753320838142061717766914730359825349042875546873115956286388235378759375195778185778053217122680661300192787661119590921642019;
int a = q.length();
if (q.substring(z, z + 4).equals("sin[")) {
for (int i = 0; i < q.length() && flag; i++) {
if (q.substring(i, i + 1).equals("]")) {
a = i;
flag = false;
}
}
q = q.substring(0, z) + Math.sin(Double.parseDouble(q.substring(z + 4, a)) * Pi / 180) + q.substring(a + 1);
} else if (q.substring(z, z + 4).equals("cos[")) {
for (int i = 0; i < q.length() && flag; i++) {
if (q.substring(i, i + 1).equals("]")) {
a = i;
flag = false;
}
}
q = q.substring(0, z) + Math.cos(Double.parseDouble(q.substring(z + 4, a)) * Pi / 180) + q.substring(a + 1);
} else if (q.substring(z, z + 4).equals("tan[")) {
for (int i = 0; i < q.length() && flag; i++) {
if (q.substring(i, i + 1).equals("]")) {
a = i;
flag = false;
}
}
q = q.substring(0, z) + Math.tan(Double.parseDouble(q.substring(z + 4, a)) * Pi / 180) + q.substring(a + 1);
}
}
}
if (q.substring(0, 1).equals("-")) {
q = "n" + q.substring(1);
}
return q;
}
public String conTrig(String q) {
for (int z = 0; z < q.length(); z++) {
int a = 0, b = q.length(), i;
if (q.contains("sin(")) {
for (i = q.indexOf("sin") + 4; (i < q.length()) && (a != -1); i++) {
if (q.substring(i, i + 1).equals("(")) {
a++;
} else if (q.substring(i, i + 1).equals(")")) {
a--;
}
}
q = q.substring(0, q.indexOf("sin(")) + "sin[" + q.substring(q.indexOf("sin(") + 4, i - 1) + "]" + q.substring(i);
} else if (q.contains("cos(")) {
for (i = q.indexOf("cos") + 4; (i < q.length()) && (a != -1); i++) {
if (q.substring(i, i + 1).equals("(")) {
a++;
} else if (q.substring(i, i + 1).equals(")")) {
a--;
}
}
q = q.substring(0, q.indexOf("cos(")) + "cos[" + q.substring(q.indexOf("cos(") + 4, i - 1) + "]" + q.substring(i);
} else if (q.contains("tan(")) {
for (i = q.indexOf("tan") + 4; (i < q.length()) && (a != -1); i++) {
if (q.substring(i, i + 1).equals("(")) {
a++;
} else if (q.substring(i, i + 1).equals(")")) {
a--;
}
}
q = q.substring(0, q.indexOf("tan(")) + "tan[" + q.substring(q.indexOf("tan(") + 4, i - 1) + "]" + q.substring(i);
}
}
return q;
}
public String conNeg(String q) {
for (int i = 0; i < q.length() - 1; i++) {
if ((q.substring(i, i + 1).equals("-") || q.substring(i, i + 1).equals("+") || q.substring(i, i + 1).equals("x") || q.substring(i, i + 1).equals("/") || q.substring(i, i + 1).equals("^")) && q.substring(i + 1, i + 2).equals("-")) {
q = q.substring(0, i + 1) + "n" + q.substring(i + 2);
} else if (i == 0 && q.substring(0, 1).equals("-")) {
q = "n" + q.substring(1);
}
}
return q;
}
public String o2(String q) {
int posLastOP = 0, posNextOP = 0;
boolean flag1 = true, flag2 = true;
double a, b, c;
for (int i = 1; i < q.length(); i++) {//Order2 operations
if (q.substring(i, i + 1).equals("^")) {
for (int x = i - 1; x >= 0 && flag1; x--) {
if (q.substring(x, x + 1).equals("x") || q.substring(x, x + 1).equals("/") || q.substring(x, x + 1).equals("+") || q.substring(x, x + 1).equals("-") || q.substring(x, x + 1).equals("^")) {
posLastOP = x;
flag1 = false;
} else if (x == 0) {
posLastOP = -1;
flag1 = false;
}
}
for (int y = i + 1; y < q.length() && flag2; y++) {
if (q.substring(y, y + 1).equals("x") || q.substring(y, y + 1).equals("/") || q.substring(y, y + 1).equals("+") || q.substring(y, y + 1).equals("-") || q.substring(y, y + 1).equals("^")) {
posNextOP = y;
flag2 = false;
} else if (y == q.length() - 1) {
posNextOP = q.length();
flag2 = false;
}
}
if (q.substring(posLastOP + 1, posLastOP + 2).equals("n")) {
b = -1 * Double.parseDouble(q.substring(posLastOP + 2, i));
} else {
b = Double.parseDouble(q.substring(posLastOP + 1, i));
}
if (q.substring(i + 1, i + 2).equals("n")) {
c = -1 * Double.parseDouble(q.substring(i + 2, posNextOP));
} else {
c = Double.parseDouble(q.substring(i + 1, posNextOP));
}
a = Math.pow(b, c);
if (a >= 0) {
q = q.substring(0, posLastOP + 1) + a + q.substring(posNextOP);
} else {
q = q.substring(0, posLastOP + 1) + "n" + ((-1) * a) + q.substring(posNextOP);
}
i--;
flag2 = true;
flag1 = true;
}
}
return q;
}
public String o3(String q) {
int posLastOP = 0, posNextOP = 0;
boolean flag1 = true, flag2 = true;
double a, b, c;
for (int i = 1; i < q.length(); i++) {//Order3 operations
if (q.substring(i, i + 1).equals("x")) {
for (int x = i - 1; x >= 0 && flag1; x--) {
if (q.substring(x, x + 1).equals("x") || q.substring(x, x + 1).equals("/") || q.substring(x, x + 1).equals("+") || q.substring(x, x + 1).equals("-")) {
posLastOP = x;
flag1 = false;
} else if (x == 0) {
posLastOP = -1;
flag1 = false;
}
}
for (int y = i + 1; y < q.length() && flag2; y++) {
if (q.substring(y, y + 1).equals("x") || q.substring(y, y + 1).equals("/") || q.substring(y, y + 1).equals("+") || q.substring(y, y + 1).equals("-")) {
posNextOP = y;
flag2 = false;
} else if (y == q.length() - 1) {
posNextOP = q.length();
flag2 = false;
}
}
if (q.substring(posLastOP + 1, posLastOP + 2).equals("n")) {
b = -1 * Double.parseDouble(q.substring(posLastOP + 2, i));
} else {
b = Double.parseDouble(q.substring(posLastOP + 1, i));
}
if (q.substring(i + 1, i + 2).equals("n")) {
c = -1 * Double.parseDouble(q.substring(i + 2, posNextOP));
} else {
c = Double.parseDouble(q.substring(i + 1, posNextOP));
}
a = b * c;
if (a < 0) {
q = q.substring(0, posLastOP + 1) + "n" + Math.abs(a) + q.substring(posNextOP);
} else {
q = q.substring(0, posLastOP + 1) + a + q.substring(posNextOP);
}
i--;
flag2 = true;
flag1 = true;
} else if (q.substring(i, i + 1).equals("/")) {
for (int x = i - 1; x >= 0 && flag1; x--) {
if (q.substring(x, x + 1).equals("x") || q.substring(x, x + 1).equals("/") || q.substring(x, x + 1).equals("+") || q.substring(x, x + 1).equals("-")) {
posLastOP = x;
flag1 = false;
} else if (x == 0) {
posLastOP = -1;
flag1 = false;
}
}
for (int y = i + 1; y < q.length() && flag2; y++) {
if (q.substring(y, y + 1).equals("x") || q.substring(y, y + 1).equals("/") || q.substring(y, y + 1).equals("+") || q.substring(y, y + 1).equals("-")) {
posNextOP = y;
flag2 = false;
} else if (y == q.length() - 1) {
posNextOP = q.length();
flag2 = false;
}
}
if (q.substring(posLastOP + 1, posLastOP + 2).equals("n")) {
b = -1 * Double.parseDouble(q.substring(posLastOP + 2, i));
} else {
b = Double.parseDouble(q.substring(posLastOP + 1, i));
}
if (q.substring(i + 1, i + 2).equals("n")) {
c = -1 * Double.parseDouble(q.substring(i + 2, posNextOP));
} else {
c = Double.parseDouble(q.substring(i + 1, posNextOP));
}
a = b / c;
if (a < 0) {
q = q.substring(0, posLastOP + 1) + "n" + Math.abs(a) + q.substring(posNextOP);
} else {
q = q.substring(0, posLastOP + 1) + a + q.substring(posNextOP);
}
i--;
flag2 = true;
flag1 = true;
}
}
return q;
}
public String o4(String q) {
int posLastOP = 0, posNextOP = 0;
boolean flag1 = true, flag2 = true;
double a, b, c;
for (int i = 1; i < q.length(); i++) {//Order4 operations
if (q.substring(i, i + 1).equals("+")) {
for (int x = i - 1; x >= 0 && flag1; x--) {
if (q.substring(x, x + 1).equals("x") || q.substring(x, x + 1).equals("/") || q.substring(x, x + 1).equals("+") || q.substring(x, x + 1).equals("-")) {
posLastOP = x;
flag1 = false;
} else if (x == 0) {
posLastOP = -1;
flag1 = false;
}
}
for (int y = i + 1; y < q.length() && flag2; y++) {
if (q.substring(y, y + 1).equals("x") || q.substring(y, y + 1).equals("/") || q.substring(y, y + 1).equals("+") || q.substring(y, y + 1).equals("-")) {
posNextOP = y;
flag2 = false;
} else if (y == q.length() - 1) {
posNextOP = q.length();
flag2 = false;
}
}
if (q.substring(posLastOP + 1, posLastOP + 2).equals("n")) {
b = -1 * Double.parseDouble(q.substring(posLastOP + 2, i));
} else {
b = Double.parseDouble(q.substring(posLastOP + 1, i));
}
if (q.substring(i + 1, i + 2).equals("n")) {
c = -1 * Double.parseDouble(q.substring(i + 2, posNextOP));
} else {
c = Double.parseDouble(q.substring(i + 1, posNextOP));
}
a = b + c;
if (a < 0) {
q = q.substring(0, posLastOP + 1) + "n" + Math.abs(a) + q.substring(posNextOP);
} else {
q = q.substring(0, posLastOP + 1) + a + q.substring(posNextOP);
}
i--;
flag2 = true;
flag1 = true;
} else if (q.substring(i, i + 1).equals("-")) {
for (int x = i - 1; x >= 0 && flag1; x--) {
if (q.substring(x, x + 1).equals("x") || q.substring(x, x + 1).equals("/") || q.substring(x, x + 1).equals("+") || q.substring(x, x + 1).equals("-")) {
posLastOP = x;
flag1 = false;
} else if (x == 0) {
posLastOP = -1;
flag1 = false;
}
}
for (int y = i + 1; y < q.length() && flag2; y++) {
if (q.substring(y, y + 1).equals("x") || q.substring(y, y + 1).equals("/") || q.substring(y, y + 1).equals("+") || q.substring(y, y + 1).equals("-")) {
posNextOP = y;
flag2 = false;
} else if (y == q.length() - 1) {
posNextOP = q.length();
flag2 = false;
}
}
if (q.substring(posLastOP + 1, posLastOP + 2).equals("n")) {
b = -1 * Double.parseDouble(q.substring(posLastOP + 2, i));
} else {
b = Double.parseDouble(q.substring(posLastOP + 1, i));
}
if (q.substring(i + 1, i + 2).equals("n")) {
c = -1 * Double.parseDouble(q.substring(i + 2, posNextOP));
} else {
c = Double.parseDouble(q.substring(i + 1, posNextOP));
}
a = b - c;
if (a < 0) {
q = q.substring(0, posLastOP + 1) + "n" + Math.abs(a) + q.substring(posNextOP);
} else {
q = q.substring(0, posLastOP + 1) + a + q.substring(posNextOP);
}
i--;
flag2 = true;
flag1 = true;
}
}
return q;
}
public String subsolve(int start, int end) {
String chunk = out.substring(start, end);
chunk = o2(chunk);
chunk = o3(chunk);
chunk = o4(chunk);
return chunk;
}
}
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