冒泡:
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import java.util.Arrays;
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class arrayDemo4
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{
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public static void main(String[] args)
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{
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int[] a={0,9,8,7,6,5,4,3,66,44,32,22};
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int[] b=arraySort1(a);
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System.out.println(Arrays.toString(b));
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}
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public static int[] arraySort1(int[] a){
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for (int i=0; i
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{
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for (int j=0; j
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{
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if (a[j]>a[j+1])
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{
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int t=a[j];
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a[j]=a[j+1];
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a[j+1]=t;
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}
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}
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}
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return a;
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}
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}
选择:
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import java.util.Arrays;
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class arrayDemo3
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{
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public static void main(String[] args)
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{
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int[] a={6,4,6,2,1,5,7,2,3,6,7,3,1};
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int[] b=arraySort(a);
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System.out.println(Arrays.toString(b));
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}
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public static int[] arraySort(int[] a){
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for (int i=0; i
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{
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for (int j=i+1; j
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{
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if (a[i]>a[j])
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{
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int t=a[i];
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a[i]=a[j];
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a[j]=t;
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}
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}
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}
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return a;
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}
插入排序
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import java.util.Arrays;
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class arrayDemo6
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{
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public static void main(String[] args)
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{
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int[] a={12,45,135,2,464,9,454,21,12423};
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System.out.println(Arrays.toString(insertSort1(a)));
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}
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public static int[] insertSort1(int[] a){
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int t,j;
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for (int i=1;i
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{
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t=a[i];
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for (j=i-1;j>=0;j--)
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{
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if (t
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{
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a[j+1]=a[j];
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}else
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break;
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}
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a[j+1]=t;
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}
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return a;
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}
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}
优化后的插入排序:
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import java.util.Arrays;
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class arrayDemo7
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{
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public static void main(String[] args)
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{
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int[] a={12,45,135,2,464,9,454,21,12423};
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System.out.println(Arrays.toString(insertSort1(a)));
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}
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public static int[] insertSort1(int[] a){
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int t,j;
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for (int i=1;i
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{
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t=a[i];
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for (j=i-1;j>=0&&t
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{
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a[j+1]=a[j];
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}
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a[j+1]=t;
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}
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return a;
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}
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}
文章名称:JAVA小练习冒泡排序,选择排序和插入排序
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