?? testequalsobject.java
字號:
class MyDate {
int day,month,year;
public MyDate(int i,int j,int k) {
day = i;
month = j;
year = k;
}
}
class MyOkDate extends MyDate{
public MyOkDate(int i,int j,int k ){
super(i,j,k);
}
public boolean equals( Object obj ){
if( obj instanceof MyOkDate ){
MyOkDate m = (MyOkDate)obj;
if(m.day==day && m.month==month && m.year==year )
return true;
}
return false;
}
}
public class TestEqualsObject{
public static void main(String[] args) {
MyDate m1 = new MyDate(24, 3, 2001);
MyDate m2 = new MyDate(24, 3, 2001);
System.out.println( m1.equals(m2) ); //不相等,顯示false
m1 = new MyOkDate( 24, 3, 2001 );
m2 = new MyOkDate( 24, 3, 2001 );
System.out.println( m1.equals(m2) ); //相等,顯示true
}
}
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -