toUpperCase() String Method Web & Application String str1 = "Cccp"; String str2 = "Rabbit"; str1 = str1.toUpperCase(); str2 = str2.toUpperCase(); println(str1 + ":" + str2); // Prints CCCP:RABBIT Converts all of the characters in the string to uppercase. For example, "abc" will convert to "ABC". charAt() int: X coordinate of the pixel in source image String 1.0 Method Core