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This page contains an archived post to the Java Answers Forum made prior to February 25, 2002.
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Message:
Pay me for java diamonds...
Posted by Kishori Sharan on December 08, 2000 at 10:11 AM
Compile and run Test.java and you will get three kinds of diamonds. Don't forget to pay me for these java diamonds!!! ////////////////Test.java ////////////
public class Test {
public static final void main(String [] args) {
int size = 3 ;
if ( args.length > 0 ) {
// Check if user passed any number
try {
size = Integer.parseInt ( args[0] ) ;
}
catch ( NumberFormatException e ) {
size = 4 ;
}
}
createFilledDiamond ( size ) ;
System.out.println ( ) ;
createLightDiamond ( size ) ;
System.out.println ( ) ;
createEmptyDiamond ( size ) ;
2System.out.println ( ) ;
}
public static void createFilledDiamond ( int size ) {
int i = 0 ;
int j = 0 ;
// Create upper half
for ( i = size, j = 1 ; i > 0 ; i--, j += 2 ) {
printChar ( " ", i ) ;
printChar ( "*", j ) ;
System.out.println ( ) ;
}
// Create lower half
for ( i = 0 ; j >= 1 ; i++, j -= 2 ) {
printChar ( " ", i ) ;
printChar ( "*", j ) ;
System.out.println ( ) ;
}
}
public static void createLightDiamond ( int size ) {
int i = 0 ;
int j = 0 ;
// Create upper half
for ( i = size, j = 1 ; i > 0 ; i--, j += 2 ) {
printChar ( " ", i ) ;
printOddChar ( "*", j ) ;
System.out.println ( ) ;
}
// Create lower half
for ( i = 0 ; j >= 1 ; i++, j -= 2 ) {
printChar ( " ", i ) ;
printOddChar ( "*", j ) ;
System.out.println ( ) ;
}
}
public static void createEmptyDiamond ( int size ) {
int i = 0 ;
int j = 0 ;
// Create upper half
for ( i = size, j = 1 ; i > 0 ; i--, j += 2 ) {
printChar ( " ", i ) ;
printExtremeChar ( "*", j ) ;
System.out.println ( ) ;
}
// Create lower half
for ( i = 0 ; j >= 1 ; i++, j -= 2 ) {
printChar ( " ", i ) ;
printExtremeChar ( "*", j ) ;
System.out.println ( ) ;
}
}
private static void printChar ( String str, int total ) {
for ( int i = 0 ; i < total ; i++ ) {
System.out.print ( str ) ;
}
}
private static void printOddChar ( String str, int total ) {
for ( int i = 1 ; i <= total ; i++ ) {
if ( i % 2 == 1 ) {
System.out.print ( str ) ;
}
else {
System.out.print ( " " ) ;
}
}
}
private static void printExtremeChar ( String str, int total ) {
for ( int i = 1 ; i <= total ; i++ ) {
if ( i == 1 || i == total ) {
System.out.print ( str ) ;
}
else {
System.out.print ( " " ) ;
}
}
}
}
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