Java练习题8.2-输出图形

Java练习题8.2-输出图形

1.1

package com.shangjiti.aoian; public class Ex1 { public static void main(String[] args) { for(int i=1;i<=6;i++) { for(int j=1;j<=i;j++) { System.out.print("*"); } System.out.println(); } } }

1.2

package com.shangjiti.aoian; public class Ex2 { public static void main(String[] args) { for(int i=1;i<=6;i++) { for(int j=1;j<=2*i-1;j++) System.out.print("*"); System.out.println(); } } }

1.3

package com.shangjiti.aoian; public class Ex3 { public static void main(String[] args) { for(int i=1;i<=6;i++){ for(int j=1;j<=13-2*i;j++) System.out.print("*"); System.out.println(); } } }

package com.shangjiti.aoian; public class Ex5 { public static void main(String[] args) { for(int i=1;i<=6;i++) { for(int k=1; k<=12-2*i; k++) System.out.print(" "); System.out.print("*"); for(int j=1; j<2*i-1;j++) System.out.print("*"); System.out.println(); } } }

package com.shangjiti.aoian; public class Ex6 { public static void main(String[] args) { for(int i=1;i<=6;i++) { for(int k=1; k<=6-i; k++) System.out.print(" "); System.out.print("*"); for(int j=1; j<2*i-1;j++) System.out.print("*"); System.out.println(); } } }

4.九九乘法表

package com.shangjiti.aoian; public class Ex4 { public static void main(String[] args) { int i,j; for(i=1;i<=9;i++) { for(j=1;j<=i;j++) { System.out.print(i+"*"+j+"="+i*j+"\t"); } System.out.println(); } } }