JAVA怎么合并两个数组
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三种字符数组合并的方法public static String[] getOneArray()
String[] a = "0", "1", "2" ;
String[] b = "0", "1", "2" ;
String[] c = new String[a.length + b.length];
for (int j = 0; j < a.length; ++j)
c[j] = a[j];
for (int j = 0; j < b.length; ++j)
c[a.length + j] = b[j];
return c;
public static Object[] getTwoArray()
String[] a = "0", "1", "2" ;
String[] b = "0", "1", "2" ;
List aL = Arrays.asList(a);
List bL = Arrays.asList(b);
List resultList = new ArrayList();
resultList.addAll(aL);
resultList.addAll(bL);
Object[] result = resultList.toArray();
return result;
public static String[] getThreeArray()
String[] a = "0", "1", "2", "3" ;
String[] b = "4", "5", "6", "7", "8" ;
String[] c = new String[a.length + b.length];
System.arraycopy(a, 0, c, 0, a.length);
System.arraycopy(b, 0, c, a.length, b.length);
return c;
Reference: http://www.cnblogs.com/changhongzhi/articles/2242323.html
参考技术A int a[]=12,23,15,11,56,51;int b[]=4,2,50,78,90;
ArrayList<Integer> alist=new ArrayList<Integer>(a.length+b.length);
for (int j = 0; j < a.length; j++)
alist.add(a[j]);
for (int k = 0; k < b.length; k++)
alist.add(b[k]);
int c[] =new int[alist.size()];
for(int i=0; i<alist.size();i++)
c[i]=alist.get(i);
参考技术B java数组合并问题
三种字符数组合并的方法
public static String[] getOneArray()
String[] a = "0", "1", "2" ;
String[] b = "0", "1", "2" ;
String[] c = new String[a.length + b.length];
for (int j = 0; j < a.length; ++j)
c[j] = a[j];
for (int j = 0; j < b.length; ++j)
c[a.length + j] = b[j];
return c;
public static Object[] getTwoArray()
String[] a = "0", "1", "2" ;
String[] b = "0", "1", "2" ;
List aL = Arrays.asList(a);
List bL = Arrays.asList(b);
List resultList = new ArrayList();
resultList.addAll(aL);
resultList.addAll(bL);
Object[] result = resultList.toArray();
return result;
public static String[] getThreeArray()
String[] a = "0", "1", "2", "3" ;
String[] b = "4", "5", "6", "7", "8" ;
String[] c = new String[a.length + b.length];
System.arraycopy(a, 0, c, 0, a.length);
System.arraycopy(b, 0, c, a.length, b.length);
return c;
1.两个字符数组合并的问题
public String[] getMergeArray(String[] al,String[] bl)
String[] a = al;
String[] b = bl;
String[] c = new String[a.length + b.length];
System.arraycopy(a, 0, c, 0, a.length);
System.arraycopy(b, 0, c, a.length, b.length);
return c;
2.字符数组和整形数组合并问题
public int[] getIntArray(int[] al,String[] bl)
int[] a = al;
String[] b = bl;
int[] ia=new int[b.length];
for(int i=0;i<b.length;i++)
ia[i]=Integer.parseInt(b[i]);
int[] c = new int[a.length + ia.length];
System.arraycopy(a, 0, c, 0, a.length);
System.arraycopy(ia, 0, c, a.length, ia.length);
return c;
参考技术C int[] s =4, 7, 2, 3, 1 ,10, 6, 5 ,9 ,8;
int[] s2 = 4,6,2,10,24,9,30,7;
int a[]=new int[s.length+s2.length]; //定义一个长度为s加s2长度的数组
System.arraycopy(s,0,a,0,s.length); //将数组s的元素复制到a中
System.arraycopy(s2,0,a,s.length,s2.length); //将数组s2的元素复制到a中
for(int i=0;i<a.length;i++) //输出新的数组元素a
System.out.println(a[i]);
java 合并两个byte数组
//java 合并两个byte数组 public static byte[] bytesMerger(byte[] byte_1, byte[] byte_2) { byte[] byte_3 = new byte[byte_1.length + byte_2.length]; System.arraycopy(byte_1, 0, byte_3, 0, byte_1.length); System.arraycopy(byte_2, 0, byte_3, byte_1.length, byte_2.length); return byte_3; }
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