NAME:dapeng AGE 27 CJ:100
NAME:jinlin AGE 23 CJ:76
NAME:yaojian AGE 28 CJ:82
NAME:dandan AGE 25 CJ:93
NAME:pengcheng AGE 23 CJ:79
76 79 82 93 100我是刚开始学java的新手,上面是我的程序现在的打印结果,但是这个不是我需要的结果。
我需要打印后应该把“CJ”排好序后打印,类似如上面5行的形式。但是是按照"CJ"的“小-大”顺序排列的。代码如下:
import java.util.Arrays;public class ArrSort { //主执行类
public static void main(String[] args) { Student s1 = new Student("dapeng", 27, 100);
Student s2 = new Student("jinlin", 23, 76);
Student s3 = new Student("yaojian", 28, 82);
Student s4 = new Student("dandan", 25, 93);
Student s5 = new Student("pengcheng", 23, 79);
int ia[] = new int
[]{s1.getKscj() ,s2.getKscj() ,s3.getKscj() ,s4.getKscj() ,s5.getKscj()};
Arrays.sort(ia);
for(int i = 0; i <ia.length; i++){
System.out.print(" " + ia[i]);
}
}
}请大大们帮我改改,谢谢了~~~~
NAME:jinlin AGE 23 CJ:76
NAME:yaojian AGE 28 CJ:82
NAME:dandan AGE 25 CJ:93
NAME:pengcheng AGE 23 CJ:79
76 79 82 93 100我是刚开始学java的新手,上面是我的程序现在的打印结果,但是这个不是我需要的结果。
我需要打印后应该把“CJ”排好序后打印,类似如上面5行的形式。但是是按照"CJ"的“小-大”顺序排列的。代码如下:
import java.util.Arrays;public class ArrSort { //主执行类
public static void main(String[] args) { Student s1 = new Student("dapeng", 27, 100);
Student s2 = new Student("jinlin", 23, 76);
Student s3 = new Student("yaojian", 28, 82);
Student s4 = new Student("dandan", 25, 93);
Student s5 = new Student("pengcheng", 23, 79);
int ia[] = new int
[]{s1.getKscj() ,s2.getKscj() ,s3.getKscj() ,s4.getKscj() ,s5.getKscj()};
Arrays.sort(ia);
for(int i = 0; i <ia.length; i++){
System.out.print(" " + ia[i]);
}
}
}请大大们帮我改改,谢谢了~~~~
this.name = string;
this.age = i;
this.kscj = j;
}
private String name;
private int age;
private int kscj;
public int compareTo(Object o) {
if (this.kscj > ((Student) o).kscj) {
return 1;
} else {
return -1;
}
}
public String toString() {
return "NAME:" + this.name + "AGE" + this.age + "CJ:" + this.kscj;
}}
下面是测试类:
import java.util.Arrays;
public class ArrSort { // 主执行类
public static void main(String[] args) {
Student s1 = new Student("dapeng", 27, 100);
Student s2 = new Student("jinlin", 23, 76);
Student s3 = new Student("yaojian", 28, 82);
Student s4 = new Student("dandan", 25, 93);
Student s5 = new Student("pengcheng", 23, 79);
Student[] student = new Student[5];
student[0] = s1;
student[1] = s2;
student[2] = s3;
student[3] = s4;
student[4] = s5;
Arrays.sort(student);
for (int i = 0; i < student.length; i++) {
System.out.println(student[i]);
}
}
}
Student s2 = new Student("jinlin", 23, 76);
Student s3 = new Student("yaojian", 28, 82);
Student s4 = new Student("dandan", 25, 93);
Student s5 = new Student("pengcheng", 23, 79);
Student sa[] = new Student[]{s1,s2,s3,s4,s5};
int ia[] = new int
[]{s1.getKscj() ,s2.getKscj() ,s3.getKscj() ,s4.getKscj() ,s5.getKscj()};
Arrays.sort(ia);
for(int i = 0; i <ia.length; i++){
for(int j = 0; j <sa.length; j++){
if (ia[i] == sa[j].getKscj()) { System.out.print("NAME:" + sa[j].getName());
System.out.print(" AGE:" + sa[j].getAge());
System.out.print(" CJ:" + sa[j].getKscj());
System.out.println();
}
}
} }