Thinking in java 基本类型方法重载

最新推荐文章于 2021-02-25 04:03:56 发布

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最新推荐文章于 2021-02-25 04:03:56 发布

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本文链接：https://blog.youkuaiyun.com/qq_35591193/article/details/60778253

本文探讨了Java中方法重载遇到基本类型时的行为特点，包括char、byte和short等类型的参数传递及方法选择机制。

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(本文来自于Thinking in java 加入了楼主自己的思考，未必正确)

3.7

1.当方法重载遇上基本类型

public class Test {

    /**
     * 测试涉及基本类型的重载
     */
    public static void main(String[] args) {
        
        System.out.print("char类型重载：");
        char x='x';
        f1(x);f2(x);f3(x);  
        System.out.print("byte类型重载：");
        byte y=0;
        f1(y);f2(y);f3(y);
        System.out.print("short类型重载：");
        short z=0;
        f1(z);f2(z);f3(z);f4(z);
            
    }
    public static void f1(char x){System.out.print("f1(char)");};
    public static void f1(byte x){System.out.print("f1(byte)");};
    public static void f1(short x){System.out.print("f1(short)");};
    public static void f1(int x){System.out.print("f1(int)");};
    public static void f1(long x){System.out.print("f1(long)");};
    public static void f1(float x){System.out.print("f1(float)");};
    public static void f1(double x){System.out.print("f1(double)");};
    
    
    public static void f2(short x){System.out.print("f2(short)");};
    public static void f2(int x){System.out.print("f2(int)");};
    public static void f2(long x){System.out.print("f2(long)");};
    public static void f2(float x){System.out.print("f2(float)");};
    public static void f2(double x){System.out.print("f2(double)");};
    
    
    public static void f3(int x){System.out.print("f3(int)");};
    public static void f3(long x){System.out.print("f3(long)");};
    public static void f3(float x){System.out.print("f3(float)");};
    public static void f3(double x){System.out.print("f3(double)");};
    
    public static void f4(long x){System.out.print("f4(long)");};
}