class Change1 {
int a,b;
Change1(int a,int b){
this.a = a;
this.b = b;
} void set(int a,int b){
int c = a;
a = b;
b = c;
} void show(int a,int b) {
System.out.println(a);
System.out.println(b);
}
}
public class Change{
public static void main(String []args) {
Change1 d = new Change1(1,2);
d.set();
d.show();
}
}怎么方法不能调用呢?请大侠们解答。
int a,b;
Change1(int a,int b){
this.a = a;
this.b = b;
} void set(int a,int b){
int c = a;
a = b;
b = c;
} void show(int a,int b) {
System.out.println(a);
System.out.println(b);
}
}
public class Change{
public static void main(String []args) {
Change1 d = new Change1(1,2);
d.set();
d.show();
}
}怎么方法不能调用呢?请大侠们解答。
d.show(2,4);
int a,b;
Change1(int a,int b){
this.a = a;
this.b = b;
} void set(int a,int b){
int c = a;
a = b;
b = c;
} void show(int a,int b) {
System.out.println(a);
System.out.println(b);
}
}
public class Change{
public static void main(String []args) {
Change1 d = new Change1(1,2);
d.set(1,2);
d.show(1,2);
}
}