英文:
Pass named parameter to a method
问题
class AllTheColorsOfTheRainbow {private int hue = 0;int anIntegerRepresentingColors;void changeTheHueOfTheColor(int newHue) {this.hue = newHue;}public int getHue(){return this.hue;}}public class Ex11 {public static void main(String [] args){AllTheColorsOfTheRainbow a = new AllTheColorsOfTheRainbow();a.changeTheHueOfTheColor(newHue = 1);System.out.println(a.getHue());}}Stack trace:javac Ex11.javaEx11.java:18: error: cannot find symbola.changeTheHueOfTheColor(newHue = 1);^symbol: variable newHuelocation: class Ex111 errorWhat does this mean, and how can I correct it?
英文:
Code:
class AllTheColorsOfTheRainbow {private int hue = 0;int anIntegerRepresentingColors;void changeTheHueOfTheColor(int newHue) {this.hue = newHue;}public int getHue(){return this.hue;}}public class Ex11 {public static void main(String [] args){AllTheColorsOfTheRainbow a = new AllTheColorsOfTheRainbow();a.changeTheHueOfTheColor(newHue = 1);System.out.println(a.getHue());}}
Stack trace:
javac Ex11.javaEx11.java:18: error: cannot find symbola.changeTheHueOfTheColor(newHue = 1);^symbol: variable newHuelocation: class Ex111 error
What does this mean, and how can I correct it?
答案1
得分: 5
Java没有命名参数，只有位置参数。您需要在不带参数名称的情况下传递它：
a.changeTheHueOfTheColor(1);// 这里 -----------------^
英文:
Java does not have named arguments, just positional arguments. You need to pass it without the parameter's name:
a.changeTheHueOfTheColor(1);// Here -----------------^
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