Using Java to understand program logic (9)

public class One

{
public static void main (string[] Args)

{
8 15 27 39 44 56
33
Scanner input = new Scanner (system.in);
int[] one = {8, 15, 27, 39, 44, 56};
System.out.print ("the original character sequence is:");
for (int i = 0; i < one.length; i++)

{
System.out.print (one[i] + "");
}
System.out.print ("\ N Please enter a number:");
int a = Input.nextint ();//33
int index = one.length;//3//saves The index of a save LOCATION//3
for (int i = 0; i < one.length; i++)

{
If (one[i] >= a)//39 >= 33

{
index = i;//find where a is stored
Break;//jump out of the loop
}
}
One:8 15 27 39 44 56
Two:8 15 27 39 44 56 88
The new array, where the array is inserted into the completed sequence
int[] "the New Int[one.length + 1];
for (int i = 0; i < two.length; i++)

{
If (i < INDEX)//6 < 6

{
two[i] = one[i];
}

else if (i = = INDEX)//6 = = 6

{
two[i] = a;//88
}

ELSE//I>INDEX//6 > 3

{
two[i] = one[i-1];
}
}
System.out.print ("after Insert completes array:");
for (int i = 0; i < two.length; i++)

{
System.out.print (two[i] + "");
}
}
}

I++: first use and then accumulate

++i: add first and then use

int i=10;
System.out.println (I++);//10
System.out.println (++I);//12
System.out.println (I--);//12
System.out.println (I.);//10
int A=++i + I--;//11 + 11
System.out.println (A);//22
System.out.println (I);//10

Multiplication tables:

public class Three

{
public static void main (string[] Args)

{
For (int I=1;i<=9;i++)//outer Loop Line

{
For (int j=1;j<=i;j++)//inner Loop column

{
System.out.print (j+ "*" +i+ "=" + (i*j) + "\ t");
}
System.out.println ();//line Break
}
}
}
1*1=1
1*2=2 2*2=4
1*3=3 2*3=6 3*3=9
....
1*9=9 2*9=18 ..... ..... 9*9=81

Right triangle

public class

{
public static void main (string[] Args)

{
Scanner input=new Scanner (system.in);
System.out.print ("please Enter the number of lines:");
int Row=input.nextint ();
For (int I=1;i<=row;i++)//outer Loop Line i=3

{
For (int j=1;j<=2*i-1;j++)//memory Loop column j=3

{
System.out.print ("*");
}
System.out.println ();//line Break
}
Inverted Right angle
For (int I=row;i>=1;i--)//outer Loop Line i=3

{
For (int j=1;j<=2*i-1;j++)//memory Loop column j=3

{
System.out.print ("*");
}
System.out.println ();//line Break
}
}
}

Isosceles Triangle

public class Three

{
public static void main (string[] Args)

{
Isosceles Triangle
5
For (int I=5;i>=1;i--)//line

{
For (int k=1;k<=5-i;k++)//space per line

{
System.out.print ("");
}
For (int J=1;j<=2*i-1;j++)//column

{
If (j==1 | | j==2*i-1 | | i==5)

{
System.out.print ("*");
}

else//printing spaces

{
System.out.print ("");
}
}
System.out.println ();//line Break
}
For (int I=2;i<=5;i++)//line

{
For (int k=1;k<=5-i;k++)//space per line

{
System.out.print ("");
}
For (int J=1;j<=2*i-1;j++)//column

{
If (j==1 | | j==2*i-1 | | i==5)

{
System.out.print ("*");
}

else//printing spaces

{
System.out.print ("");
}
}
System.out.println ();//line Break
}
}
}
*
***
*****
*******
*********

int A=10;//int32//common
Long B=10;//int64
Double d=8.88d;//64 dual-precision floating-point Type//common
Float E=7.77F;//32 single-precision Floating-point type

Simple Color Ball:

public class Four

{
public static void main (string[] Args)

{

Top 6 digits: 1-33 random number (cannot be duplicated)
Last: 1-16 Random Numbers
8 22 33 16 17 18+15
int[] one=new int[7];//store 7 digit color Ball number
4 33 17 10 5 31 0
for (int i = 0; i < one.length-1; i++)//first 6 bits 1-33 random number i=5

{
While (true)

{
int rand= (int) (math.random () *33+1);//1-33 random number
The Boolean ok=false;//default means Rand does not repeat in front of 6 bits
for (int j = 0; J < one.length-1; J + +)

{
If (one[j]==rand)//repeat

{
Ok=true;//repeated.
Break
}
}
If (!ok)//do not repeat

{
one[i]=rand;
Break;//jumps out of the whole while
}
}
}
one[one.length-1]= (int) (math.random () *16+1);//1-16 random number
System.out.println ("color Ball as follows:");
for (int i = 0; i < one.length; i++)

{
System.out.print (one[i]+ "\ t");
}
}
}

Hourglass (solid) (inverted triangle, Positive triangle):

public class Shalou

{
public static void main (string[] Args)

{
int i = 9;//9 line
For (int y = 0; y < (i + 1)/2; Y++)

{
For (int x = 0; x < i; + +)
If (x >= y && x <= i-y-1)
System.out.print ("*");
Else
System.out.print ("");
System.out.print ("\ n");
}
For (int y = (i + 1)/2; y < i; y++)

{
For (int x = 0; x < i; + +)
If (x <= y && x >= i-y-1)
System.out.print ("*");
Else
System.out.print ("");
System.out.print ("\ n");
}
}
}

*********
*******
*****
***
*
***
*****
*******
*********

Hundred Money to buy hundred chickens:

public class One

{
public static void main (string[] Args)

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

{
for (int j = 0; J <=, J + +)

{
For (int k = 0; k <=; k++)

{
If (i + 9 * j + k = = && i + j + k = = 100)

{
System.out.println ("rooster" + i + "hen" + j + "chick" + k);
}
}
}
}
}
}

Inverted triangle:

public class Daosanjiao

{
public static void main (string[] Args)

{
int hang = 3;
for (int i = 0; i < hang; i++)

{
For (int a = 0; a < i; A++)

{
System.out.print ("");
}
for (int B = 1; b <= 2 * hang-2 * i-1; B++)

{
System.out.print ("*");
}
System.out.print ("\ n");
}
}
}

Using Java to understand program logic (9)