JAVA array algorithm (copy, find, insert)

I. Copying an array algorithm

//Array Copy algorithm Public classtest{ Public Static voidMain (string[] args) {int[] ArrA = {100,800,500,600,700}; int[] ARRB =New    int[Arra.length]; //Copy the corresponding subscript value of a to B with a for loop         for(inti=0;i<arra.length;i++) {Arrb[i]=Arra[i]; }        //output ARRB         for(inti=0;i<arrb.length;i++) {System.out.println (arrb[i]); }    }}

Operation Result:

Second, find array algorithm

//Array Lookup Algorithm//find out if a student existsImportJava.util.Scanner;//Import Scanner Public classtest{ Public Static voidMain (string[] args) {Scanner in=NewScanner (system.in); System.out.print ("Please enter the student you are looking for:"); String name=In.next (); String[] Arr= {"Wang er", "Zhang San", "John Doe", "Harry", "Six Leper"};//Student Name        intYes = Arr.length;//to record an impossible subscript         for(inti=0;i<arr.length;i++){            if(Name.equals (Arr[i])) {Yes=i;  Break; }        }        if(yes<arr.length) {System.out.println ("Student:" +name+ "exists, subscript value is" +yes); }        Else{System.out.println ("Student:" +name+ "does not exist"); }    }}

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Iii. inserting an array algorithm

//Array Insertion AlgorithmImportJava.util.Scanner; Public classtest{ Public Static voidMain (string[] args) {Scanner in=NewScanner (system.in); int[] arr = {2,43,67,99,199,433}; System.out.println ("Please enter the value you want to insert:"); intnum =In.nextint (); Arr[arr.length-1] =num;  for(inti=arr.length-1;i>0;i--){            if(arr[i]<arr[i-1]){                intt =Arr[i]; Arr[i]= Arr[i-1]; Arr[i-1] =T; }            Else{                 Break; }        }        //Output         for(inti=0;i<arr.length;i++) {System.out.println (arr[i]); }    }}

Operation Result:

JAVA array algorithm (copy, find, insert)