The Java array iterates to remove the remove of sample code
- 2020-04-01 02:22:59
- OfStack
Without further ado, go straight to the code
package com.b;
import java.util.ArrayList;
//Array traverses delete, add
public class Core2 {
private String name;
private int num;
private String color;
public Core2() {
}
public Core2(String a, int b, String c) {
name = a;
num = b;
color = c;
}
public String getName() {
return name;
}
public String getColor() {
return color;
}
public int getNum() {
return num;
}
public static void main(String[] args) {
Core2 c = new Core2(" The little red ", 13, " red ");//Create three instances
Core2 c2 = new Core2(" Xiao Ming ", 12, " yellow ");//The object
Core2 c3 = new Core2(" Jack Bauer ", 123, " blue ");
Core2 c4 = new Core2(" small li", 23, " white ");
Core2 c5 = new Core2(" Little love ", 4, "blue");
Core2 c6 = new Core2(" A small north ", 2, "brave");
ArrayList aa = new ArrayList();//A collection of the container
aa.add(c);
aa.add(c2);
aa.add(c3);
aa.add(c4);
// aa.remove(1);
aa.add(2, c5);
aa.add(1, c6);
aa.remove(c4);
System.out.println(" The size is: " + aa.size());
for (int i = 0; i < aa.size(); i++) {
Core2 m = (Core2) aa.get(i);//Arraylist traversal and addition
System.out.println(" The first " + (i + 1) + " Student names: " + m.getName() + ", Student number is: "
+ m.getNum() + ", The color is: " + m.getColor());
}
}
}
The size is: 5
The first 1 Student name: xiaohong , Student number is: 13, The color is: red
The first 2 Student name: small north , Student number is: 2, The color is: brave
The first 3 Student name: xiaoming , Student number is: 12, The color is: yellow
The first 4 Student name: xiao ai , Student number is: 4, The color is: blue
The first 5 Student name: jack Bauer , Student number is: 123, The color is blue