Write a java program to calculate sum column wise in a matrix: import java.util.Random; import java.util.Scanner; public class ColumnWiseLeast { public static void main(String[] args) { int mat[][]=readmatrix(); dispMat(mat); System.out.println("Sum of Diagonal element is : "); int arr[]=leastColWise(mat); dispSingleArray(arr); } static int[] leastColWise(int mat[][]) { int least[]=new int[mat[0].length]; for(int i=0;i<mat[0].length;i++) { least[i]=mat[0][i]; for(int j=0;j<mat.length;j++) { if(least[i]>mat[j][i]) { least[i]=mat[j][i]; } } }return least; } static int[][] readmatrix(){ Random rx=new Random(); Scanner sc=new Scanner(System.in); System.out.println("Enter Row size and column size :"); int row=sc.nextInt(); int col=sc.nextInt(); int mat[][]=new int[row][col]; System.out.println("Enter Elements in Table : "); for(int i=0;i<row;i++) { fo...
Write a java program to Replace a word in String : package String; import java.util.Scanner; public class ReplaceString { public static void main(String[] args) { Scanner in=new Scanner(System.in); String str="Hello <<UserName>>, How are you?"; String uname=null; do { System.out.println("Enter user name :"); uname=in.nextLine(); if(uname.length()>3 && uname.length()<11) break; else { System.out.println("Invalid user please ReEnter : "); continue; } }while(uname.length()<3 || uname.length()>10); System.out.println(uname); str=str.replaceAll("<<UserName>>", uname); System.out.println(str); } }
Comments
Post a Comment