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  • 1月21日

    import java.util.ArrayList;
    
    public class LXArrayList {
    
        public static void main(String[] args) {
            // TODO 自动生成的方法存根
    
            
            ArrayList<Integer> l = new ArrayList<Integer>();
            
            l.add(123);
            
            l.add(456);
            
            l.add(789);
            
            for(int i = 0; i < 11; i++)
            {
                l.add(i);
            }
                
            System.out.println("列表中的元素有:" + l);
            
            
            System.out.print("列表中的元素有:");
            
            for(int t : l)
            {
                System.out.print(" " + t);
            }
            
            System.out.print("
    " +"列表中的元素有:");
            
            for(int i = 0; i < l.size();i++)
            {
                System.out.print(l.get(i) + " ");
            }
            
            
            ArrayList<Shu> sz = new ArrayList<Shu>();
            
            sz.add(new Shu("樟树",15,20.5));
            
            Shu ys = new Shu();
            
            ys.setShuMIng("杨树");
            
            ys.setGaoDu(13);
            
            ys.setKuanDu(15.3);
            
            sz.add(ys);
            
            System.out.println();
            
            for (int i = 0; i < sz.size();i++)
            {
                System.out.println(sz.get(i));
            }
            
            /* 输出结果如下:
            列表中的元素有:[123, 456, 789, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
            列表中的元素有: 123 456 789 0 1 2 3 4 5 6 7 8 9 10
            列表中的元素有:123 456 789 0 1 2 3 4 5 6 7 8 9 10 
            Shu [shuMIng=樟树, gaoDu=15, kuanDu=20.5]
            Shu [shuMIng=杨树, gaoDu=13, kuanDu=15.3]
            */
    
            
            
        }
    
    }
    public class Shu {
        
        
        
        
        
        public Shu() 
        {
            super();
        }
    
        public Shu(String shuMIng, int gaoDu, double kuanDu) 
        {
            super();
            
            this.shuMIng = shuMIng;
            
            this.gaoDu = gaoDu;
            
            this.kuanDu = kuanDu;
        }
        
        private String shuMIng;
        
        private int gaoDu;
        
        private double kuanDu;
    
    
        public String getShuMIng() {
            return shuMIng;
        }
    
        public void setShuMIng(String shuMIng) {
            this.shuMIng = shuMIng;
        }
    
        public int getGaoDu() {
            return gaoDu;
        }
    
        public void setGaoDu(int gaoDu) {
            this.gaoDu = gaoDu;
        }
    
        public double getKuanDu() {
            return kuanDu;
        }
    
        public void setKuanDu(double kuanDu) {
            this.kuanDu = kuanDu;
        }
    
        @Override
        public String toString() {
            return "Shu [shuMIng=" + shuMIng + ", gaoDu=" + gaoDu + ", kuanDu=" + kuanDu + "]";
        }
        
        
    
        
    }
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  • 原文地址:https://www.cnblogs.com/yifangtongxing/p/5149894.html
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