成员方法/构造方法-跟着韩顺平-循序渐进学java-P7

javascripttypescripthtmlcssshellpythongolangjavacc++c#phprubyswiftkotlinscalarustdartelixirhaskellluaperlrsql

public class Hello
{
    public static void main(String[] args) {
        
    }

    public void func() {
        //...
    }

    public void func(int a) {
        //...
    }

    public void func(int a,int b) {
        //...
    }

    public int func(int a) {
        //错误，同名且参数个数相同
    }
}

javascripttypescripthtmlcssshellpythongolangjavacc++c#phprubyswiftkotlinscalarustdartelixirhaskellluaperlrsql

public void func(int a);

javascripttypescripthtmlcssshellpythongolangjavacc++c#phprubyswiftkotlinscalarustdartelixirhaskellluaperlrsql

public class Hello
{
    int a;
    String name;

    public Hello()
    {
        //默认构造方法
    }

    public Hello(int a)
    {
        //构造方法
    }

    public Hello(String name)
    {
        //构造方法2
    }
}