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public class J5_3 {	public static void main(String[] args) {		// TODO Auto-generated method stub		System.out.printf("%8s%8s\n","千克","磅");		for(int i =1;i<200;i+=2)		{			double kilogram = i;			double pound = kilogram *2.2;						System.out.printf("%4.0f%9.1f\n",kilogram,pound);		}					}}

public class J5_4 {	public static void main(String[] args) {		// TODO Auto-generated method stub		System.out.printf("%8s%8s\n","英里","千米");		for(int i =1;i<=10;i+=1)		{			double mile = i;			double kilometer = mile *1.609;						System.out.printf("%5.0f%11.4f\n",mile,kilometer);		}	}}

public class J5_5 {	public static void main(String[] args) {		// TODO Auto-generated method stub		System.out.printf("%8s%8s%8s%8s\n","千克","磅","磅","千克");		int j =20;		for(int i =1;i<200;i+=2)		{			double kilogram = i;			double pound = kilogram *2.2;						double pounds = j;			double  kilograms= pounds / 2.2;			if(j<=515)				j+=5;			System.out.printf("%4.0f%9.1f%4.0f%9.3f\n",kilogram,pound,pounds,kilograms);					}		}}

public class J5_6 {	public static void main(String[] args) {		System.out.printf("%8s%8s%8s%8s\n","英里","千米","千米","英里");		int j =20;		for(int i =1;i<=10;i++)		{			double mile = i;			double kilometer = mile * 1.609;						double kilometers = j;			double  miles = kilometers / 1.609;			if(j<=65)				j+=5;			System.out.printf("%4.0f%9.3f%7.0f%9.3f\n",mile,kilometer,kilometers,miles);					}		}}

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