public class Point{
public double x;
public double y;
public void show(){
System.out.println("("+x+","+y+")");
}
public Point(double x1,double y1){
x=x1;
y=y1;
}
public static void main(String args[]){
double a;
double b;
Point m=new Point(12.5,8);
Point n=new Point(10,5);
public void getMiddle(Point m,Point n){
a=(m.x+n.x)/2;
b=(m.y+n.y)/2;
System.out.println("("+a+","+b+")");
}
}
}
public double x;
public double y;
public void show(){
System.out.println("("+x+","+y+")");
}
public Point(double x1,double y1){
x=x1;
y=y1;
}
public static void main(String args[]){
double a;
double b;
Point m=new Point(12.5,8);
Point n=new Point(10,5);
public void getMiddle(Point m,Point n){
a=(m.x+n.x)/2;
b=(m.y+n.y)/2;
System.out.println("("+a+","+b+")");
}
}
}
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public double x;
public double y;
public void show(){
System.out.println("("+x+","+y+")");
}
public Point(double x1,double y1){
x=x1;
y=y1;
}
public static void getMiddle(Point m,Point n){
double a;
double b;
a=(m.x+n.x)/2;
b=(m.y+n.y)/2;
System.out.println("("+a+","+b+")");
}
public static void main(String args[]){
Point m=new Point(12.5,8);
Point n=new Point(10,5);
getMiddle(m, n);
}
}
main函数不属于任何类
看看下面帮你改的package com.yxk.test;public class Point{
public double x;
public double y;
public void show(){
System.out.println("("+x+","+y+")");
}
public Point(){}
public Point(double x1,double y1){
x=x1;
y=y1;
}
public static class Test{
public void getMiddle(Point m,Point n){
double a;
double b;
a=(m.x+n.x)/2;
b=(m.y+n.y)/2;
System.out.println("("+a+","+b+")");
}
}public static void main(String args[]){
Point m=new Point(12.5,8);
Point n=new Point(10,5);
new Test().getMiddle(m, n);
}
}