06 of the hands-on brain in Java

Task One:

Code:

Package Shi;

Import Javax.swing.JOptionPane;

public class Shi6d1 {

public static void Main (string[] args) {

int array[] = new INT[10];

for (int m=0;m<10;m++)

{Array[m] = (int) (Math.random () *100);}

String str= "";

for (int m=0;m<10;m++)

{str=str+array[m]+ "";}

int b=0;

for (int m=0;m<10;m++)

{b=b+array[m];}

Str=str+ " and as:" +B;

Joptionpane.showmessagedialog (Null,str, "", joptionpane.plain_message);

}

}

：

Ideas:

Define an array with a length of ten, then Assign the values randomly by the For loop, then define an int type variable b in the array Ten and then assigns each number in the array plus a space to a String type of Str , at the end plus and then output through the dialog box.

Program Flowchart:

Hands-on brain:

Board:

Code:

P ackage Shi;

Import java.io.*;

public class Qipan

{

define a two-dimensional array to act as a chessboard

Private string[][] board;

define the size of the board

private static int board_size = 15;

public void Initboard ()

{

initializing an array of checkers

board = new String[board_size][board_size];

assign each element "╋"todraw a chessboard on the console

for (int i = 0; i < board_size; i++)

{

for (int j = 0; J < Board_size; J + +)

{

BOARD[I][J] = "╋";

}

}

}

How to output a checkerboard in the console

public void Printboard ()

{

Print each array element

for (int i = 0; i < board_size; i++)

{

for (int j = 0; J < Board_size; J + +)

{

print array elements without wrapping

System.out.print (Board[i][j]);

}

outputs a newline character after each line of array elements is printed

System.out.print ("\ n");

}

}

public static void Main (string[] args) throws Exception

{

Qipan GB = new Qipan ();

Gb.initboard ();

Gb.printboard ();

This is the method for getting keyboard input

BufferedReader br = new BufferedReader (new InputStreamReader (system.in));

String inputstr = null;

System.out.println (" Please enter the coordinates of your chess, should be in x, y format:");

Br.readline (): Whenever you enter a line on the keyboard press ENTER, the content you just entered will be read by BR .

while ((Inputstr = Br.readline ()) = null)

{

Separates the user-entered stringinto 2 strings with a comma (,) as a delimiter

string[] Posstrarr = Inputstr.split (",");

converts 2 strings to the coordinates of a user's chess

int xPos = Integer.parseint (posstrarr[0]);

int yPos = Integer.parseint (posstrarr[1]);

assign the corresponding array element as "".

GB.BOARD[XPOS-1][YPOS-1] = "";

/*

The computer randomly generates 2 integers, which are assigned to the board array as the coordinates of a computer's chess game .

also involves

1. the validity of the coordinates, can only be a number, not beyond the board range

2. if the point of chess under, can not repeat chess.

3. after each play, you need to scan who wins .

*/

Gb.printboard ();

System.out.println (" Please enter the coordinates of your chess, should be in x, y format:");

}

}

}

：

Digital conversion Capitalization:

Code:

Package Shi;

Import Javax.swing.JOptionPane;

public class Shi6d2 {

public static void Main (string[] args) {

String as=joptionpane.showinputdialog (" input number ");

Double number=double.parsedouble (AS);

number=number*100;

int n=0,num= (int) number; discard all after parting

int array[]=new int[9];

for (int i=0;i<10;i++) {

if (num==0)

Break

array[i]=num%10;

NUM=NUM/10;

n++;

}

String str[]={" minute ", " angle ", " meta ", " pick ", " Bai "," thousand "," million "," 10 "," Bai "};

String str1[]={" 0 ", " one "," II ", " three ", " Wu Lu Qi BA JIU

for (int i=n-1;i>=0;i--) {

System.out.print (Str1[array[i]);

System.out.print (Str[i]); }}}

:

Large number:

Code:

Addition

I mport javax.swing.*;

P ublic class Big {

P ublic static void main (string[] args) {

String num1=joptionpane.showinputdialog (" First number ");

String num2=joptionpane.showinputdialog (" first number ");

I NT nu1[]=new int[10];

I NT nu2[]=new int[10];

I NT nu3[]=new int[10];

I NT j=0;

for (int i=num1.length () -1;i>=0;i--) {

Nu1[j++]=num1.charat (i)-' 0 ';

}

j=0;

for (int i=num2.length () -1;i>=0;i--) {

Nu2[j++]=num2.charat (i)-' 0 ';

}

I NT next=0;

for (int i=0;i<nu1.length;i++) {

nu3[i]= (Nu1[i]+nu2[i]+next)%10;

next= (Nu1[i]+nu2[i]+next)/10;

}

for (int i=nu3.length-1;i>=0;i--) {

System.out.print (Nu3[i]);

}

}

}

Subtraction

P ackage Array;

Import javax.swing.*;

P ublic class Big {

P ublic static void main (string[] args) {

String num1=joptionpane.showinputdialog (" first number ");

String num2=joptionpane.showinputdialog (" first number ");

I NT nu1[]=new int[10];

I NT nu2[]=new int[10];

I NT nu3[]=new int[10];

I NT j=0;

for (int i=num1.length () -1;i>=0;i--) {

Nu1[j++]=num1.charat (i)-' 0 ';

}

j=0;

for (int i=num2.length () -1;i>=0;i--) {

Nu2[j++]=num2.charat (i)-' 0 ';

}

// Two number comparison size

I NT flag=0;

for (int i=nu1.length-1;i>=0;i--) {

if (Nu1[i]>nu2[i]) {

FLAG=1;BREAK;//1 represents 1 Digital Big

}

if (Nu1[i]<nu2[i]) {

FLAG=2;BREAK;//2 represents 2 Digital Big

}

}

I NT next=0;

if (flag==1) {

for (int i=0;i<nu1.length;i++) {

Nu3[i]=nu1[i]-nu2[i]+next;

if (nu3[i]<0) {

Next=-1;

nu3[i]=nu3[i]+10;

}

Else

next=0;

}

for (int i=nu3.length-1;i>=0;i--) {

System.out.print (Nu3[i]);

}}

if (flag==2) {

for (int i=0;i<nu1.length;i++) {

Nu3[i]=nu2[i]-nu1[i]+next;

if (nu3[i]<0) {

Next=-1;

nu3[i]=nu3[i]+10;

}

Else

next=0;

}

System.out.print ("-");

for (int i=nu3.length-1;i>=0;i--) {

System.out.print (Nu3[i]);

}

if (flag==0) {

System.out.println ("0");

}}

}

}

06 of the hands-on brain in Java