Eclipse java write a program that computes a css color.
Chapter16: Graphics
Section: Chapter Questions
Problem 7RQ
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Question
Eclipse java write a program that computes a css color.
Expert Solution
Step 1: algorithm
// function to convert decimal to hexadecimal
static String decToHexa(int n) {
// char array to store hexadecimal number
char[] hexaDeciNum = new char[2];
// counter for hexadecimal number array
int i = 0;
while (n != 0) {
// temporary variable to store remainder
int temp = 0;
// storing remainder in temp variable.
temp = n % 16;
// check if temp < 10
if (temp < 10) {
hexaDeciNum[i] = (char) (temp + 48);
i++;
} else {
hexaDeciNum[i] = (char) (temp + 55);
i++;
}
n = n / 16;
}
String hexCode = "";
if (i == 2) {
hexCode += hexaDeciNum[0];
hexCode += hexaDeciNum[1];
} else if (i == 1) {
hexCode = "0";
hexCode += hexaDeciNum[0];
} else if (i == 0)
hexCode = "00";
// Return the equivalent
// hexadecimal color code
return hexCode;
}
// Function to convert the
// RGB code to Hex color code
static String convertRGBtoHex(int R, int G, int B) {
if ((R >= 0 && R <= 255) && (G >= 0 && G <= 255) && (B >= 0 && B <= 255)) {
String hexCode = "#";
hexCode += decToHexa(R);
hexCode += decToHexa(G);
hexCode += decToHexa(B);
return hexCode;
}
// The hex color code doesn't exist
else
return "-1";
}
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