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Create L1 Exersicises #5

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@Ruslan2322 Ruslan2322 commented Apr 15, 2020

Hi, please check me!, BR

@Ruslan2322
Create L1 Exersicises
bcdc3d5 
Hi, please check me!,   BR
Ludmilaunia
Ludmilaunia reviewed Sep 7, 2020
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L1 Exersicises
Comment on lines +1 to +460

LINE PROGRAMS

EXERCISE 1

import java.util.Scanner;

public class TestMain {
public static void main(String[] args) {
Scanner s = new Scanner(System.in);
System.out.println("Введите значение а: ");
int a = s.nextInt();
System.out.println("Введите значение b: ");
int b = s.nextInt();
System.out.println("Введите значение c: ");
int c = s.nextInt();
double z = (((a-3)*b/2)+c);
System.out.println(z);
}
}

EXERCISE 2

public class TestMain {
public static void main(String... asf) {
// Объявим переменные для степеней переменных
int v1 = 2;
int v2 = 3;
int v3 = -2;
double z;
// Объявим значения переменных с = 1.0 , b = 2.0, a = 3.0
double c = 5.0;
double a = 2.0, a1 = Math.pow(a, v2);
double b = 1.0, b1 = Math.pow(b, v1), b2 = Math.pow(b, v3);
double t = Math.sqrt(Math.pow(b, a1) + 4 * a * c);
double t1 = (b + t) % 2 * a;
z = t1 - a1 * c + b2;

System.out.println(z);

}
}

EXERCISE 3

import static java.lang.Math.*;
public class TestMain {
public static void main(String... asf) {
// Объявим переменные типа double x и y
// Нужно импортировать toRadians, cos, sin

double x = 30.0;
double x1 = toRadians(x); // sin x
double x2 = toRadians(x); // cos x
double x3 = sin(x1) % cos(x2); // tg x
// System.out.println(sin(x1));
// System.out.println(cos(x2));
// System.out.println(tan(x3));

double y = 45.0;
double y1 = toRadians(y); // sin y
double y2 = toRadians(y); // cos y
double y3 = sin(y1) % cos(y2); // tg y
// System.out.println(sin(y1));
// System.out.println(cos(y2));
// System.out.println(tan(y3));

// Значение выражения z выглядит следующим образом

double z = ((sin(x1) + cos(y2)) % (cos(x2) - sin(y1))) % (tan(x3) + tan(y3));
System.out.println(z);
}
}

EXERCISE 4

public class TestMain {
public static void main(String... asf) {
// Предположим число R равно 457.987
double R = 457.987;
double R1 = (int) R;
//System.out.println(R1);
double result1 = R1 / 1000;
double result= result1 + (R - R1) * 1000;
System.out.println(result);
}
}

EXERCISE 5

public class TestMain {
public static void main(String... asf) {
long T = 87896799;

long HH = 0;
long MM = 0;
long SS = 0;

HH = T / 3600;
MM = (T - HH * 3600) / 60;
SS = T - HH * 3600 - MM * 60;
System.out.println(HH + "ч "+ MM + "м " + SS + "с " );
}
}

EXERSICE 6

import java.util.Random; // импортируем класс Random
public class TestMain {
public static void main(String[] args) {

Random rx = new Random();
Random ry = new Random();

int x = rx.nextInt(15) -6;
int y = ry.nextInt(12) -4;

{
if (x > 0 && y > 0) {
if (x < 3 && y < 5) {
System.out.println(true);
return;
}
}

if (x < 0 && y > 0) {
if (x > -3 && y < 5) {
System.out.println(true);
return;
}
}
if (x > 0 && y < 0) {
if (x < 5 && y > -4) {
System.out.println(true);
return;
}
}
if (x < 0 && y < 0) {
if (x > -5 && y > -4) {
System.out.println(true);
return;
}
}
System.out.println(false);
}
}
}


BRANCHES

EXERCISE 1

import java.util.Random;

public class TestMain {
public static void main(String[] args) {

double Min = 0.0;
double Max = 360.0;
Random r = new Random();
double x = Min + (Max - Min) * r.nextDouble(); // угол x
double y = Min + (Max - Min) * r.nextDouble(); // угол y
//double x = 45.0;
//double y = 45.0;
System.out.println("Угол 1: "+x);
System.out.println("Угол 2: "+y);

double z = x + y; // сумма 2х углов
double z1 = 180.0 - z;
// System.out.println(z);
// System.out.println(z1);
double t = 180.0; // сумма углов треугольника

if (z < 180.0) {
System.out.println("Triangle: " + true);
if (z1 == 90) {
System.out.println("Triangle: rectangular");
}
} else {
System.out.println("Impossible");
}
}
}

EXERCISE 2

public class TestMain {
public static void main(String[] args) {

int max;
int a = 5;
int b = 6;
int c = 7;
int d = 8;

int z;
z = Math.min(a, b);
// System.out.println(z);
int z1;
z1 = Math.min(c, d);
// System.out.println(z1);

if (z > z1) {
max = z;
} else {
max = z1;
}
System.out.println(max);
}
}


EXERSIZE 3

public class TestMain {
public static void main(String[] args) {

double x1 = 1, y1 = 1;
double x2 = 1, y2 = 1;
double x3 = 1, y3 = 1;

if (x1 == x2 && x2 == x3 && x1 == x3 && y1 == y2 && y2 == y3 && y1 == y3)
System.out.println("Точки на одной прямой");
else
System.out.println("Точки не лежат на одной прямой");
}
}


EXERCISE 4

import java.util.Random;

public class TestMain {
public static void main(String[] args) {
Random ar = new Random();
Random br = new Random();

// Произвольные размеры дыры в стене
int a = ar.nextInt(300);
int b = br.nextInt(300);

// Запишем размеры кирпича
int x = 40;
int y = 190;
int z = 60;

if (x <= a && y <= b || y <= a && x <= b ||
x <= a && z <= b || z <= a && x <= b ||
z <= a && y <= b || y <= a && z <= b)
System.out.println("Пройдёт");
else
System.out.println("Не пройдет");
}
}

EXERSICE 5


import java.util.Scanner;

public class TestMain {
public static void main(String[] args) {

//Вычислить значение функции:
Scanner scanner = new Scanner(System.in);
System.out.println(" Enter x ");
double x = scanner.nextDouble();

double g, z;
if (x<=3){
z = Math.pow(x,2)-3*x+9;
System.out.printf("Result 1: %.1f ", z);
} else if (x > 3) {
g = 1 / (Math.pow(x, 3) + 6);
System.out.printf("Result 2: %.1f ", g);
}
}
}


CYCLES


EXERCISE 1

import java.util.Scanner;

public class TestMain {
public static void main(String[] args) {
System.out.print("Введите любое целое положительное число и нажмите Enter: ");
Scanner sc = new Scanner(System.in);
int n = sc.nextInt();
int sum = 0;
for (int i=1; i<= n; i++){
sum = sum + i;
System.out.println(i);
}
System.out.println ("Сумма всех чисел: "+ sum);
}
}

EXERCISE 2

import java.util.Scanner;

public class TestMain {
public static void main(String[] args) {

Scanner scanner = new Scanner(System.in);
System.out.println("Enter start line A");
int a = scanner.nextInt();
System.out.println("Enter finish line B");
int b = scanner.nextInt();
System.out.println("Enter step h");
double h = scanner.nextDouble();
System.out.println("Enter the value of x");
int x = scanner.nextInt();
int y;

for (double i = a; i <= b; i = i + h) {
if (x > 2) {
y = x;
} else
y = -x;
System.out.println("x = "+ x + "\n" + "y = " + y);
}
}
}

EXERCISE 3

public class TestMain {
public static void main(String[] args) {
int n = 100, sum = 0;
for (int i = 1; i <= n; i++) {
sum += Math.pow(i, 2);;
}
System.out.println("Сумма квадратов первых ста чисел= " + sum);
}
}

EXERCISE 4

public class TestMain {
public static void main(String[] args) {
long n = 200, sum = 1; // Если sum = 0 , то все последующие числа будут умножаться на 0 и произведение будет равно 0;
for (int i = 1; i <= n; i++) {
sum *= Math.pow(i, 2);;
}
System.out.println("Произведение квадратов первых ста чисел= " + sum);
}
}

EXERCISE 5

public class TestMain {

public static void main(String[] args) {

// Даны числовой ряд и некоторое число е. Найти сумму тех членов ряда, модуль которых больше или равен
// заданному е. Общий член ряда имеет вид: a = 1/2^n + 1/3^n;

System.out.println("Input е");
Scanner scanner = new Scanner(System.in);
double e = scanner.nextDouble();

int n = 0;
double sum = 0;
System.out.println("Print a series of common member series: ");
for (int i = 0; i<=10; i++){
++n;
System.out.print("\n");
double a = (1/Math.pow(2,n))+ (1/Math.pow(3,n));
System.out.printf("%.4f", a);
if (e <= Math.abs(a))
sum = sum+a;
System.out.printf(" sum is %f", sum);
}
}
}

EXERCISE 6

public class TestMain {
public static void main(String... asf)
{

for(int i =0; i<256; i++)
{
System.out.println( i + ". " + (char)i);
}
}
}


EXERCISE 7

import java.util.Scanner;

public class TestMain {
public static void main(String[] args) {

// rus: Для каждого натурального числа в промежутке от m до n вывести все делители, кроме единицы и самого числа.
// m и n вводятся с клавиатуры.

// eng: For each positive integer in the range from m to n, print all dividers except for the unit and the number itself.
// m and n are entered from the keyboard.

Scanner scanner = new Scanner(System.in);
System.out.println("Enter start of line numbers m ");
int m = scanner.nextInt();
System.out.println("Enter end of line numbers n ");
int n = scanner.nextInt();

while (m <= n) {
System.out.print("\n number: " + m);
System.out.print(" its dividers: ");
for (int i = 2; i <= m - 1; i++) {
if (m % i == 0) {
System.out.print(i + ",");
}
}
m = m + 1;
}
}
}

EXERCISE 8

public class TestMain {
public static void main(String[] args) {
// Создаём массив и вводим руками ао 1 числу в каждый элемент массива
int[] number1 = {1, 3, 4};
int[] number2 = {2, 3, 4};
for (int v : number1)
System.out.print(v);
System.out.print(" ");
for (int v1 : number2)
System.out.print(v1);
{
int[] number3 = new int[number1.length];
int count = 0;

for (int i = 0; i < number1.length;i++) {
if (number1[i] == number2[i]) {
number3[count] = number1[i];
count++;
System.out.println(" ");
for (int v2 : number3)
System.out.print(v2);

}
}
}
}
}


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@Ludmilaunia Ludmilaunia Sep 7, 2020

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Good!!!

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@Ludmilaunia Ludmilaunia Ludmilaunia approved these changes

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@Ruslan2322 @Ludmilaunia