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  • Java数组扩展

    Java中,数组初始化后如何扩展数组?

    示例

    以下示例显示如何在创建新并初始化数组后扩展数组。

    package com.yiibai;
    
    public class ExtendingArray {
        public static void main(String[] args) {
            String[] names = new String[] { "A", "B", "C" };
            String[] extended = new String[5];
            extended[3] = "D";
            extended[4] = "E";
            System.arraycopy(names, 0, extended, 0, names.length);
    
            for (String str : extended) {
                System.out.print(str+",");
            }
        }
    }
    
    Java

    执行上面示例代码,得到以下结果 -

    A,B,C,D,E,
    
    Shell

    示例2

    以下是数组扩展的另一个示例示例 -

    package com.yiibai;
    
    public class ExtendingArray2 {
        public void extendArraySize() {
            String[] names = new String[] { "Maxsu", "Minsu", "Sum" };
            String[] extended = new String[5];
            extended[3] = "Sukida";
            extended[4] = "Avg";
            System.arraycopy(names, 0, extended, 0, names.length);
    
            for (String str : extended)
                System.out.println(str);
        }
    
        public static void main(String[] args) {
            new ExtendingArray2().extendArraySize();
        }
    }
    
    Java

    执行上面示例代码,得到以下结果 -

    Maxsu
    Minsu
    Sum
    Sukida
    Avg
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  • 原文地址:https://www.cnblogs.com/borter/p/9613364.html
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