ProjectKoolit Java: 2012

Martes, Pebrero 7, 2012

basic 38: Joption

package basic;
import javax.swing.JOptionPane;
public class Basic {

public static void main(String[] args) {

String Faren;
double faren;
double cel;

Faren = JOptionPane.showInputDialog(" put the temperature of farenheit");

faren = Double.parseDouble(Faren);
cel = (faren-32.0)* (5.0/9.0);

System.out.println("faren temp" + faren);
System.out.println("cel temp" + cel);

}
}

basic 37: String concat

package basicforjava;

public class Basicforjava {

public static void main(String[] args){
String str1 = "manny";
String str2 = "pakyaw";
String name = str1 + " " + str2;
System.out.println(name+ " hahahaha");
}

basic 36: int from string

package basicforjava;

public class Basicforjava {

public static void main(String[] args) {
String yahoo = "300";
int i = Integer.parseInt(yahoo);
int sum = i - 10;
System.out.println("Integer value= " + sum);
}
}

basic 35: Array sort

package basic3;

import java.util.Arrays;

public class Basic3 {

public static void main(String[] args) {

String[] names = {"Zoel", "Alisona", "Ray"};
Arrays.sort(names);
System.out.println(Arrays.toString(names));

double[] lengths = {12.0, 10.5, 1.0, 999.0, 77.5};
Arrays.sort(lengths);
System.out.println(Arrays.toString(lengths));
}
}

basic 34: table for multidimensional array

package basic;

public class Basic {

public static void main(String[] args) {
int array1[][] = {{1, 2, 3, 4, 5}, {6, 7, 8, 9, 10}};
int array2[][] = {{11, 12, 13, 14, 15}, {16, 17, 18,}};
System.out.println("this is th 1st array");
display(array1);
System.out.println("this is the 2nd array");
display(array2);

}

public static void display(int x[][]) {
for (int row = 0; row < x.length; row++) {
for (int column = 0; column < x[row].length; column++) {
System.out.print(x[row][column] + "\t ");
}
System.out.println("");
}
}
}

basic 33:multidimensional array

package basic;

public class basic2 {

public static void main(String[] args) {

int array1[][] = {{1, 2, 3, 4, 5}, {6, 7, 8, 9, 10}};
int array2[][] = {{11, 12, 13, 14, 15}, {16, 17, 18,}};
yahoo(array1);
yahoo(array2);
}

public static void yahoo(int x[][]) {

for (int row = 0; row < x.length; row++) {
for (int column = 0; column < x[row].length; column++) {
System.out.println(x[row][column]);
}
}
}
}

basic 32: array method (hard)

package basic;

public class Basic {

public static void main(String[] args) {
int val[] = {1, 2, 3, 4, 5, 6, 7};
newval(val);

for (int y : val) {
System.out.println(y);
}
}

public static void newval(int x[]) {
for (int i = 0; i < x.length; i++) {
x[i] += 10;
}

}
}

basic 31: sum of all element of array

package basic;

public class Basic {

public static void main(String[] args) {
int val[] = {1, 2, 3, 4, 5, 6, 7};
int x = 0;

for (int i = 0; i < val.length; i++) {
x += val[i];

}

System.out.println(x);
}
}

basic 30: array with random

package basic;
import java.util.Random;
public class Basic {

public static void main(String[] args) {

Random lotto = new Random();
int num;
for (int i = 0;i<=10 ; i++) {

num =lotto.nextInt(5);
int val[] = {10, 23, 46, 78, 41, 23};
System.out.println(i + "\t" +val[num]);

}
}
}

basic 29 : array table

package basic;

public class Basic {

public static void main(String[] args) {
System.out.println("index\tValue");
int val[] = {10, 23, 46, 78, 41, 23};

for (int ctr = 0; ctr < val.length; ctr++) {
System.out.println(ctr +"\t" +val[ctr]);

}

}
}

basic 28 : array part 2

package basic;

public class Basic {

public static void main(String[] args) {

int angel[] = new int[5];

angel[0] = 23;
angel[1] = 34;
angel[2] = 55;
angel[3] = 66;
angel[4] = 77;

System.out.println(angel[4]);

}
}

basic 27 : array part 1

package basic;

public class Basic {

public static void main(String[] args) {

int val[] = {10, 23, 46, 78, 41, 23};

System.out.println(val[4]);

}
}

basic 26: random with loop

basic 25: random

package basic;
import java.util.Random;
public class Basic {

public static void main(String[] args) {

Random lotto = new Random();
int num;

num =100000+lotto.nextInt(1000000);
System.out.println(num);


}
}

basic 24: math method

package basic;

public class Basic {

public static void main(String[] args) {
System.out.println(Math.abs(-21));
System.out.println(Math.ceil(21.5));
System.out.println(Math.floor(2.3));
System.out.println(Math.max(12.4,5.2));
System.out.println(Math.min(12.4,5.2));
System.out.println(Math.pow(5,3));
System.out.println(Math.sqrt(81));
System.out.println(Math.round(81.6));
System.out.println(Math.exp(3));
}
}

basic 23: do while = true

package basic;

public class Basic {

public static void main(String[] args) {

int ctr = 11;

do {
System.out.println(ctr);
ctr++;
} while (ctr <= 100);
}
}

basic 22: do while = false

package basic;

public class Basic {

public static void main(String[] args) {

int ctr = 921;

do {
System.out.println(ctr);
ctr++;
} while (ctr <= 100);
}
}

basic 21: interest in bank

package basic;

public class Basic {
public static void main(String[] args) {
double amount;
double capitalB = 10000;
double tax = .12;

for (int month = 1; month <=20; month++) {
amount = capitalB*Math.pow(1 + tax ,month);
System.out.println(amount);

}



}
}

basic 20: loop and sum

package basic;

public class Basic {
public static void main(String[] args) {
int x=0;
for( int ctr = 3 ; ctr <=9; ctr+=3){
System.out.println(ctr);
x += ctr;

}
System.out.println(x);
}
}

basic 19: counting by 3 /x3

package basic;

public class Basic {
public static void main(String[] args) {
for( int ctr = 2 ; ctr <=100; ctr+=3)
System.out.println(ctr);



}
}

basic 18: average the num

package basic;
import java.util.Scanner;
public class Basic {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);

int grade=0;
int total=0;
int ave;
int ctr=0;

while (ctr < 10){

ctr++ ;
System.out.println("input number");
grade = input.nextInt();
total = grade + total;

}
ave = total/10;

System.out.println("here's the average :" +ave);
}
}

basic 17: conditional operator

package basic;

public class Basic {
public static void main(String[] args) {
int grade = 88;

System.out.println(grade <=74 ? "you have failed " :"you have passed" );

basic 16: mod % and loop with sum

package basic;

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

int y = 25;
int ctr = 2 ;
int temp = 0;
for(int x= 20; x <= y;x++)
if((x % ctr) == 1 ){
temp += x ;

}
System.out.println (temp);
}

}

basic 15: adding all loop

package get.the.greater.factor.by.fran;
public class GetTheGreaterFactorByFran {
public static void main(String[] args) {

int y = 10;

int temp = 0;
for(int x= 1; x <= y;x++)

temp += x ;


System.out.println (temp);

}
}

basic 14: using mod %

package basic;

public class basic2 {

public static void main(String[] args) {

int y = 26;
int ctr = 2 ;

if((y % ctr) == 1)

System.out.println("odd number");
else
System.out.println("even number ");
}

}

basic 13: else if

package basic;

public class Basic {
public static void main(String[] args) {
int people = 82;

if (people >= 100)
System.out.println("1" );
else if (people >= 99)
System.out.println("1.25");
else if (people >=95 )
System.out.println("1.5");
else if (people >= 90)
System.out.println("1.75");
else if (people >= 85)
System.out.println("2");
else if (people >= 80)
System.out.println("2.25");
else
System.out.println("not qualifed");

}
}

basic 12: nested if

package basic;

public class Basic {
public static void main(String[] args) {
int people = 66;

if (people < 20){
System.out.println("your group need more people" );
}else{
System.out.println("this will do");
if (people >75){
System.out.println("your group will sure be org now");
}else{
System.out.println("your group will be form sooner");
}
}
}
}

basic 11: input char using scanner

package basic;
import java.util.Scanner;
public class Basic {

public static void main(String[] args) {

Scanner input = new Scanner(System.in);
basic2 basic2Object = new basic2();

System.out.println(" enter your name");
String name = input.nextLine();

basic2Object.magic(name);
}
}

basic 10: multi class

package basic;

public class Basic {

public static void main(String[] args) {

basic2 basic2object = new basic2();
basic2object.magic();
}
}

2nd class

here's the code

package basic;

public class basic2 {

public void magic(){
System.out.println(" i got the 2nd class");



}
}

basic 9 : while loop

package basic;

public class Basic {

public static void main(String[] args) {

int counter = 1 ;

while (counter <= 10){
System.out.println("yahoo");
counter++;


}
}
}

basic 8: switch statement

package basic;

public class Basic {

public static void main(String[] args) {

int god ;
god = 3;

switch (god){

case 1 :
System.out.println("there are 1");
case 2 :
System.out.println("there are 2");
case 3 :
System.out.println("there are 3");

}



}
}

basic 7: if else statement

package basic;

public class Basic {

public static void main(String[] args) {
int yahoo = 6;

if (yahoo == 20)
System.out.println("perfect");
else
System.out.println("not perfect");
}
}

basic 6: decrement operator

package basic;
import java.util.Scanner;
public class Basic {

public static void main(String[] args) {
int user_input;
Scanner yahoo = new Scanner(System.in);

user_input = yahoo.nextInt();



System.out.println(user_input--);
System.out.println(user_input);

}
}

basic 5: increment operator

public class Basic {

public static void main(String[] args) {
int grade = 90;


System.out.println(grade++);
System.out.println(grade);


}
}

basic 4: adding 2_input value

package basic;
import java.util.Scanner;
public class Basic {

public static void main(String[] args) {

int user_input;
int user_input1;
int sum;

Scanner yahoo = new Scanner(System.in);
System.out.println("1st num");
user_input = yahoo.nextInt();
System.out.println("2nd num");
user_input1 = yahoo.nextInt();

System.out.println("total");
sum = user_input + user_input1;
System.out.println(sum);

}
}