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认真做教育 专心促就业
昆明IT培训的老师今天给大家出了一道Java题目。
packageOct2016;importjava.util.SortedSet;importjava.util.TreeSet;publicclassQues1031 {publicstaticvoidmain(String[]
args) { SortedSet<People> set =newTreeSet<People>();
set.add(newPeople(170));
set.add(newPeople(165));for(People
people : set){ System.out.println("身高:"+people.getHeight()); } System.out.println();//将身高矮的人变高set.first().setHeight(175);//
之前排在第一位的人就是最矮的for(People people : set){
System.out.println("
身高:"+people.getHeight());
} } }classPeopleimplementsComparable<People>{privateintheight;publicPeople(intheight)
{super();this.height =height; }publicintgetHeight() {returnheight;
}publicvoidsetHeight(intheight) {this.height =height; } @OverridepublicintcompareTo(People p) {//按身高从矮到高排序returnheight -p.height; } }